The Plant List — A working list for all plant species

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4226 plant name records match your search criteria Piper. The results are below.

The names found have these generic epithets:

The results can also be downloaded as a CSV file (Unicode UTF-8 encoding).

See "Status", "Confidence level", "Source" for definitions.

Name Status Confi­dence level Source Date supplied
Piper abalienatum Trel. Accepted M TRO
Piper abbadianum Yunck. Accepted M WCSP (in review)
Piper abbreviatum Opiz Accepted M WCSP (in review)
Piper abditum Trel. Accepted M TRO
Piper abellinum Trel. & Yunck. Accepted M TRO
Piper aberrans C.DC. Unresolved L WCSP (in review)
Piper abraense C.DC. Unresolved L WCSP (in review)
Piper abutilifolium (Miq.) C. DC. Accepted L TRO
Piper abutiloides (Kunth) Kunth ex Steud. Accepted M WCSP (in review)
Piper abutiloides Kunth Unresolved L TRO
Piper acamptostachys Trel. Unresolved L WCSP (in review)
Piper acarouanyanum C. DC. Synonym M TRO
Piper accedens S.Moore Unresolved L WCSP (in review)
Piper accrescens Van Heurck & Müll.Arg. Unresolved L WCSP (in review)
Piper achoteanum Trel. Accepted M WCSP (in review)
Piper achotense Trel. & Yunck. Accepted M TRO
Piper achromatolepis Trel. Accepted M TRO
Piper achupallasense Yunck. Accepted M TRO
Piper acre Blume Unresolved L WCSP (in review)
Piper acreanum C. DC. Synonym M TRO
Piper actae Trel. Synonym M WCSP (in review)
Piper aculeatum C.DC. Unresolved L WCSP (in review)
Piper acuminatissimum C. DC. Synonym M TRO
Piper acuminatum (Ruiz & Pav.) Pers. Synonym M WCSP (in review)
Piper acutamentum C.DC. Unresolved L WCSP (in review)
Piper acutibaccum C.DC. Unresolved L WCSP (in review)
Piper acutibracteum C.DC. Unresolved L WCSP (in review)
Piper acutifolium Ruiz & Pav. Accepted M TRO
Piper acutifolium var. acutifolium Synonym L TRO
Piper acutifolium var. membranaceum C. DC. Synonym L TRO
Piper acutifolium var. subverbascifolium C. DC. Synonym L TRO
Piper acutilimbum C. DC. Accepted M TRO
Piper acutissimum Trel. Synonym M WCSP (in review)
Piper acutissimum var. trichopus (Trel.) Yunck. Synonym L TRO
Piper acutistigmum C.DC. Unresolved L WCSP (in review)
Piper acutistipulum C.DC. Unresolved L WCSP (in review)
Piper acutiusculum C. DC. Accepted M TRO
Piper acutulum Trel. Accepted M TRO
Piper adamatum Trel. & Standl. Accepted M TRO
Piper addisonii Yunck. Accepted M TRO
Piper adenandrum (Miq.) C.DC. Accepted M WCSP (in review)
Piper adenophlebium Trel. Synonym L WCSP (in review)
Piper adenophorum (Miq.) C. DC. Synonym L TRO
Piper admirabile Yunck. Accepted M TRO
Piper adornatispicum Trel. Synonym M WCSP (in review)
Piper adreptum Trel. Accepted M TRO
Piper adscendens Endl. Unresolved L WCSP (in review)
Piper aduncifolium Trel. Synonym M WCSP (in review)
Piper aduncum L. Accepted M WCSP (in review)
Piper aduncum var. aduncum Synonym L TRO
Piper aduncum var. brachyarthrum (Trel.) Yunck. Synonym L WCSP (in review)
Piper aduncum var. cordulatum (C.DC.) Yunck. Accepted L WCSP (in review)
Piper aduncum var. laevifolium C. DC. Synonym L TRO
Piper aduncum var. ossanum (C. DC.) Saralegui Accepted L TRO
Piper aegrum Trel. Synonym M TRO
Piper aemulum Endl. Unresolved L WCSP (in review)
Piper aequale Vahl Accepted M WCSP (in review)
Piper aequale var. aequale Synonym L TRO
Piper aequale var. ellipticolanceolatum C.DC. Synonym L WCSP (in review)
Piper aequale var. glanduligerum (C.DC.) Steyerm. Synonym L WCSP (in review)
Piper aequale var. laurifolium (Trel.) Yunck. Accepted L TRO
Piper aequale var. santa-martanum (C.DC.) Trel. & Yunck. Synonym L WCSP (in review)
Piper aequale var. substenocarpum C. DC. Synonym L TRO
Piper aequilaterum C. DC. Synonym M TRO
Piper aereum Trel. Accepted M WCSP (in review)
Piper aeruginosibaccum Trel. Synonym M WCSP (in review)
Piper affectans Trel. Synonym M TRO
Piper affictum Trel. Accepted M TRO
Piper affine M. Martens & Galeotti Synonym M TRO
Piper afflictum Trel. Accepted M TRO
Piper afzelianum Schult. Unresolved L WCSP (in review)
Piper agellifolium Trel. & Yunck. Accepted M TRO
Piper aggregatum P.J.Bergius Synonym M WCSP (in review)
Piper agostinii Yunck. Synonym M WCSP (in review)
Piper agostiniorum Steyerm. Accepted M WCSP (in review)
Piper aguacalientis Trel. Synonym M WCSP (in review)
Piper aguadulcense Yunck. Accepted M TRO
Piper aguilanum C. DC. Synonym M TRO
Piper agusanense C.DC. Unresolved L WCSP (in review)
Piper alajuelanum Trel. Synonym M WCSP (in review)
Piper alare Desv. ex Ham. Synonym M TRO
Piper alatabaccum Trel. & Yunck. Accepted M WCSP (in review)
Piper alatipetiolatum Yunck. Accepted M TRO
Piper alatum (Ruiz & Pav.) Vahl Synonym M WCSP (in review)
Piper albamentum C.DC. Unresolved L WCSP (in review)
Piper albanense Yunck. Accepted M TRO
Piper albert-smithii Trel. & Yunck. Accepted M TRO
Piper albescens C. DC. Synonym M TRO
Piper albicaule Trel. Unresolved L WCSP (in review)
Piper albiciliatum Yunck. Accepted M TRO
Piper albidiflorum C.DC. Unresolved L WCSP (in review)
Piper albidirameum C.DC. Unresolved L WCSP (in review)
Piper albidistigmatum C.DC. Unresolved L WCSP (in review)
Piper albidopunctatum Blume Unresolved L WCSP (in review)
Piper albidum Kunth Accepted M TRO
Piper albispicum C. DC. Synonym M TRO
Piper albogranulatum Trel. Accepted M TRO
Piper albomaculatum D.Dietr. Unresolved L WCSP (in review)
Piper albopapillatum Trel. Accepted M TRO
Piper albopilosum Yunck. Accepted M TRO
Piper albopunctatum C.DC. Unresolved L WCSP (in review)
Piper albopunctulatissimum Trel. Synonym M WCSP (in review)
Piper albozonatum C. DC. Accepted M TRO
Piper albuginiferum Trel. Synonym M WCSP (in review)
Piper album Vahl Unresolved L WCSP (in review)
Piper aleyreanum C. DC. Accepted M TRO
Piper allardii Yunck. Accepted M TRO
Piper allatum Trel. Synonym M WCSP (in review)
Piper allenii Trel. Synonym M TRO
Piper allisum Trel. Synonym M TRO
Piper alluvicola C. DC. Synonym M TRO
Piper alnoides Kunth Accepted M TRO
Piper alpinum Sw. Synonym M WCSP (in review)
Piper alsinoides Lam. Unresolved L WCSP (in review)
Piper alstonii Trel. Synonym M WCSP (in review)
Piper altevaginans Trel. Synonym M WCSP (in review)
Piper alveatum Trel. Synonym M WCSP (in review)
Piper alveolatifolium Trel. Synonym M WCSP (in review)
Piper alveolatum Opiz Accepted M TRO
Piper alwynii R. Callejas P. & Betancur Unresolved L TRO
Piper amalago L. Accepted L WCSP (in review)
Piper amalago var. amalago Synonym L TRO
Piper amalago f. ceanothifolium (Kunth) Steyerm. Synonym L TRO
Piper amalago var. ceanothifolium (Kunth) Yunck. Synonym L TRO
Piper amalago var. medium (Jacq.) Yunck. Synonym L WCSP (in review)
Piper amalago var. nigrinodum (C. DC.) Yunck. Accepted L TRO
Piper amalago var. variifolia (Griseb.) Fawc. & Rendle Accepted L TRO
Piper amapense Yunck. Accepted M TRO
Piper amazonasense Trel. & Yunck. Synonym M WCSP (in review)
Piper amazonicum (Miq.) C.DC. Synonym M WCSP (in review)
Piper ambiguum Salisb. Unresolved L WCSP (in review)
Piper amboinense (Miq.) C. DC. Accepted L TRO
Piper amboinense var. latifolium (Miq.) C. DC. Accepted L TRO
Piper amnigaudens Trel. Synonym M TRO
Piper amoenum Yunck. Accepted M TRO
Piper amparoense Yunck. Accepted M WCSP (in review)
Piper amphibium Trel. Synonym M WCSP (in review)
Piper amphibracteum C.DC. Unresolved L WCSP (in review)
Piper amphioxys Trel. Synonym M TRO
Piper amphioxys var. laurifolium Trel. Synonym L TRO
Piper amphitrichum Trel. Accepted M TRO
Piper amphoricarpum Trel. Synonym L WCSP (in review)
Piper amplectens (Miq.) C. DC. Synonym L TRO
Piper amplectenticaule Trel. & Yunck. Accepted M WCSP (in review)
Piper amplexicaule Sw. Synonym M TRO
Piper amplexifolium Link Unresolved L WCSP (in review)
Piper amplifolium C.DC. Unresolved L WCSP (in review)
Piper amplilimbum C.DC. Unresolved L WCSP (in review)
Piper amplum (Kunth) Steud. Accepted M WCSP (in review)
Piper amplum Kunth Unresolved L TRO
Piper anastylum Trel. Accepted M TRO
Piper andersonii C.DC. Unresolved L WCSP (in review)
Piper andicola Kunth Unresolved L WCSP (in review)
Piper andicolum Kunth Synonym M TRO
Piper andreanum C. DC. Accepted M TRO
Piper andreanum var. parvifolium C. DC. Synonym L TRO
Piper andresense Trel. Synonym M TRO
Piper andresense var. subcalvescens Trel. Synonym L TRO
Piper androgynum C. DC. Accepted M TRO
Piper angamarcanum C. DC. Accepted M TRO
Piper angremondii C.DC. Unresolved L WCSP (in review)
Piper anguillaespicum Trel. Synonym M WCSP (in review)
Piper anguillispicum Trel. Unresolved L WCSP (in review)
Piper angulatum (Kunth) Poir. Synonym M WCSP (in review)
Piper angustatum (Kunth) Poir. Synonym M WCSP (in review)
Piper angustiae Trel. Unresolved L TRO
Piper angustifolium Ruiz & Pav. [Illegitimate] Synonym M WCSP (in review)
Piper angustifolium Lam. Synonym M TRO
Piper angustifolium var. cordulatum C.DC. Synonym L WCSP (in review)
Piper angustifolium var. ossanum C. DC. Synonym L TRO
Piper angustilimbum C.DC. Unresolved L WCSP (in review)
Piper angustipeltatum Merr. Unresolved L WCSP (in review)
Piper anisatum Kunth Synonym M WCSP (in review)
Piper anisitsii C.DC. Unresolved L WCSP (in review)
Piper anisodorum Náves ex Fern.-Vill. Unresolved L WCSP (in review)
Piper anisodorum Blanco Unresolved L WCSP (in review)
Piper anisophyllum Trel. Synonym M TRO
Piper anisophyllum var. granulatum Trel. Synonym L TRO
Piper anisopleurum C.DC. Unresolved L WCSP (in review)
Piper anisotis Hook.f. Unresolved L WCSP (in review)
Piper anisotrichum C.DC. Unresolved L WCSP (in review)
Piper anisum (Spreng.) Angely Accepted M WCSP (in review)
Piper anisumolens Blanco Unresolved L WCSP (in review)
Piper annulatispicum Trel. & Yunck. Accepted M TRO
Piper annulatum Trel. Synonym M TRO
Piper anomalum C.DC. Unresolved L WCSP (in review)
Piper anonifolium (Kunth) Steud. Accepted M WCSP (in review)
Piper anonifolium Kunth Unresolved L TRO
Piper anonifolium var. parkerianum (Miq.) Steyerm. Accepted L WCSP (in review)
Piper anonifolium var. rigidulum C. DC. Synonym L TRO
Piper anonymum Trel. Accepted M TRO
Piper anostachyum Yunck. Accepted M TRO
Piper antioquiense C. DC. Accepted M TRO
Piper apertum Trel. Synonym M WCSP (in review)
Piper apertum var. nodosum Trel. Synonym L WCSP (in review)
Piper apiculatum C. DC. Synonym L TRO
Piper apoanum C.DC. Unresolved L WCSP (in review)
Piper apodum Trel. Accepted M TRO
Piper apollinaris C. DC. Synonym M TRO
Piper appendiculatum (Benth.) C. DC. Accepted L TRO
Piper apurimacanum Trel. Accepted M TRO
Piper apus Trel. Accepted M TRO
Piper aragonense Trel. Synonym M TRO
Piper araguense Trel. & Yunck. Synonym M WCSP (in review)
Piper aramanum C. DC. Accepted M TRO
Piper araneatum Trel. Accepted M TRO
Piper araquei Yunck. Unresolved L WCSP (in review)
Piper arbelaezii Trel. & Yunck. Accepted M WCSP (in review)
Piper arbelaezii var. subglabrirameum Yunck. Synonym L TRO
Piper arborescens Roxb. Accepted M TRO
Piper arborescens var. angustilimbum Quisumb. Synonym L TRO
Piper arboreum Aubl. Accepted L WCSP (in review)
Piper arboreum var. arboreum Synonym L TRO
Piper arboreum subsp. arboreum Synonym L TRO
Piper arboreum var. falcifolium (Trel.) Yunck. Synonym L WCSP (in review)
Piper arboreum f. geniculata Fawc. & Rendl. Synonym L TRO
Piper arboreum var. hirtellum Yunck. Accepted L WCSP (in review)
Piper arboreum subsp. holguinianum (Trel.) Saralegui Accepted L TRO
Piper arboreum var. latifolium (C.DC.) Yunck. Synonym L WCSP (in review)
Piper arboreum subsp. stamineum (Miq.) Borhidi Accepted L TRO
Piper arboreum subsp. tuberculatum (Jacq.) Tebbs Synonym L WCSP (in review)
Piper arboricola C.DC. Synonym M WCSP (in review)
Piper arborigaudens C.DC. Unresolved L WCSP (in review)
Piper arborisedens C.DC. Unresolved L WCSP (in review)
Piper arbuscula Trel. Unresolved L WCSP (in review)
Piper arcessitum Trel. Synonym M TRO
Piper archeri Trel. & Yunck. Synonym M TRO
Piper archidonense Trel. Synonym M TRO
Piper arcteacuminatum Trel. Synonym M WCSP (in review)
Piper arctilimbum Trel. Synonym M WCSP (in review)
Piper arctilimbum var. allenii Trel. Synonym L WCSP (in review)
Piper arcuatum C. Presl Synonym M TRO
Piper arduum Trel. Accepted M TRO
Piper arenicola Trel. Synonym M WCSP (in review)
Piper areolatum (Miq.) C. DC. Accepted L TRO
Piper arfakianum C.DC. Unresolved L WCSP (in review)
Piper argentamentum Trel. & Yunck. Accepted M TRO
Piper argentinum (C. DC.) Trel. Synonym M TRO
Piper argillicola C. DC. Synonym M TRO
Piper argyritis Ridl. ex C.DC. Accepted M WCSP (in review)
Piper argyroneurum Hallier f. Unresolved L WCSP (in review)
Piper argyrophyllum Miq. Unresolved L WCSP (in review)
Piper arieianum C.DC. Synonym M WCSP (in review)
Piper arieianum var. chimantanum (Yunck.) Steyerm. Synonym L WCSP (in review)
Piper arieianum var. duidaense (Trel.) Steyerm. Synonym L WCSP (in review)
Piper arieianum var. yaracuyense (Yunck.) Steyerm. Synonym L WCSP (in review)
Piper arifolium Miq. Unresolved L WCSP (in review)
Piper aripoense Trel. Unresolved L WCSP (in review)
Piper aristeguietae Yunck. Synonym M WCSP (in review)
Piper aristolochiaefolium (Trel.) Yunck. Synonym M TRO
Piper aristolochioides Lam. Unresolved L WCSP (in review)
Piper aristolochiphyllum Quisumb. Unresolved L WCSP (in review)
Piper armatum Trel. & Yunck. Accepted M TRO
Piper arnottianum (Miq.) C. DC. Accepted M TRO
Piper aromaticum Willd. Synonym M WCSP (in review)
Piper arrectispicum Trel. Accepted M TRO
Piper arreptum Trel. Accepted M TRO
Piper artanthe C.DC. Accepted M WCSP (in review)
Piper artanthe var. grandifolium Yunck. Synonym L TRO
Piper artanthopse C. DC. Accepted M TRO
Piper arthantopse C.DC. Unresolved L WCSP (in review)
Piper articulatum C.DC. Unresolved L WCSP (in review)
Piper articulatum A.Rich. Unresolved L WCSP (in review)
Piper articulosum D.Parodi Synonym M WCSP (in review)
Piper articulosum Trel. Synonym M TRO
Piper arunachalense Gajurel, Rethy & Y.Kumar Unresolved L WCSP (in review)
Piper arunachalensis Gajurel, Rethy & Y. Kumar Accepted M TRO
Piper arundinetorum Trel. Synonym M TRO
Piper asarifolium (Schltdl.) D.Dietr. Synonym M WCSP (in review)
Piper ascendentispicum Trel. Accepted M TRO
Piper asclepiadifolium Trel. Accepted M TRO
Piper aserrianum Trel. Synonym M TRO
Piper aspericaule Trel. Synonym M WCSP (in review)
Piper asperifolium Rich. Synonym M WCSP (in review)
Piper asperifolium Ruiz & Pav. Synonym M TRO
Piper asperilimbum C.DC. Accepted M WCSP (in review)
Piper asperiusculum Kunth Accepted M TRO
Piper asperrimicaule Trel. Synonym M TRO
Piper asperulibaccum C. DC. Accepted M TRO
Piper asperum Pers. Unresolved L WCSP (in review)
Piper asplundii Yunck. Accepted M TRO
Piper asterocarpum Trel. Accepted M TRO
Piper asterostigmum Quisumb. Unresolved L WCSP (in review)
Piper asterotrichum C. DC. Accepted M TRO
Piper asterotrichum var. asterotrichum Synonym L TRO
Piper asymmetricum C.DC. Accepted M WCSP (in review)
Piper atlantidanum Trel. Synonym M WCSP (in review)
Piper atlantidanum var. sibunense Trel. Synonym L TRO
Piper atlantidanum var. yoroense Trel. Synonym L WCSP (in review)
Piper atrichopus Trel. Synonym M TRO
Piper atrichopus var. arborescens Trel. Synonym L WCSP (in review)
Piper atrobaccum Trel. & Yunck. Accepted M TRO
Piper atroglandulosum Tebbs Accepted M TRO
Piper atropremnon Trel. Unresolved L WCSP (in review)
Piper atrorameum C. DC. Synonym M TRO
Piper atrosanguineum C.DC. Unresolved L WCSP (in review)
Piper atrospicum C.DC. Unresolved L WCSP (in review)
Piper attenuatamentum Trel. Accepted M TRO
Piper attenuatum Buch.-Ham. ex Miq. Accepted M TRO
Piper augustum Rudge Accepted M WCSP (in review)
Piper augustum var. cocleanum (Trel.) Yunck. Accepted L TRO
Piper aulacospermum Callejas Unresolved L WCSP (in review)
Piper aurantiacum Wall. ex C. DC. Synonym L TRO
Piper aurantiacum var. glabrum (Miq.) C. DC. Unresolved L TRO
Piper aurantiacum var. hupeense C. DC. Synonym L TRO
Piper auriculatum C.DC. Unresolved L WCSP (in review)
Piper auriculatum Blume Unresolved L WCSP (in review)
Piper auriculiferum Trel. Synonym M TRO
Piper auriculifolium Yunck. Accepted M TRO
Piper auriculilamium Yunck. Unresolved L TRO
Piper aurilimbum C.DC. Unresolved L WCSP (in review)
Piper auristellanum C. DC. Synonym L TRO
Piper auritifolium Trel. Synonym M TRO
Piper auritilaminum Trel. Synonym M WCSP (in review)
Piper auritilimbum Trel. Synonym M WCSP (in review)
Piper auritum Kunth Accepted M WCSP (in review)
Piper auritum var. amplifolium C.DC. Synonym L WCSP (in review)
Piper auritum f. rinconense Trel. Synonym L WCSP (in review)
Piper auritum var. seemannianum (Miq.) Trel. Synonym L TRO
Piper aurorubrum C.DC. Unresolved L WCSP (in review)
Piper austini Trel. Synonym M WCSP (in review)
Piper austinii var. aequilaterum Trel. Synonym L TRO
Piper australasicum C.DC. Unresolved L WCSP (in review)
Piper australe A.Cunn. ex Miq. Unresolved L WCSP (in review)
Piper austrocaledonicum C.DC. Synonym M WCSP (in review)
Piper austromexicanum Trel. Unresolved L WCSP (in review)
Piper austrosinense Y.Q. Tseng Accepted M TRO
Piper avanum Wall. Unresolved L WCSP (in review)
Piper avellanum (Miq.) C.DC. Accepted M WCSP (in review)
Piper avene Hassk. Unresolved L WCSP (in review)
Piper awaensis M.A. Jaram. & Callejas Unresolved L TRO
Piper azuaiense Yunck. Accepted M TRO
Piper azupizuanum Trel. Accepted M TRO
Piper baccans (Miq.) C.DC. Accepted M WCSP (in review)
Piper baccans var. sancarlosianum (C.DC.) Steyerm. Accepted L WCSP (in review)
Piper baccatum C.DC. Unresolved L WCSP (in review)
Piper baccatum Blume Unresolved L WCSP (in review)
Piper baclei C.DC. Unresolved L WCSP (in review)
Piper baculiferum Trel. Synonym M WCSP (in review)
Piper baezanum Sodiro ex C. DC. Accepted M TRO
Piper baezense Trel. Accepted M TRO
Piper baguionum C.DC. Unresolved L WCSP (in review)
Piper bahianum Yunck. Accepted M TRO
Piper bahiense (C. Presl) C. DC. Accepted L TRO
Piper bajanum Trel. & Yunck. Accepted M TRO
Piper bakeri C. DC. Unresolved L TRO
Piper bakerianum C.DC. Unresolved L WCSP (in review)
Piper balansae C.DC. Unresolved L WCSP (in review)
Piper balaoense C. DC. Synonym M TRO
Piper balbisianum C.DC. Unresolved L WCSP (in review)
Piper balsapuertanum Trel. Accepted M TRO
Piper bambusifolium Y.Q. Tseng Accepted M TRO
Piper banaoanum Trel. Unresolved L WCSP (in review)
Piper bangii C. DC. Accepted M TRO
Piper bangkanum C.DC. Unresolved L WCSP (in review)
Piper banksii Miq. Unresolved L WCSP (in review)
Piper bantamense Blume Unresolved L WCSP (in review)
Piper baptisianum C.DC. Unresolved L WCSP (in review)
Piper baracoanum León Unresolved L WCSP (in review)
Piper baramense C.DC. Unresolved L WCSP (in review)
Piper barbatum Kunth Accepted M TRO
Piper barbatum var. andicolum (Kunth) Trel. & Yunck. Synonym L TRO
Piper barbatum var. barbatum Synonym L TRO
Piper barbatum var. isernii Trel. Synonym L TRO
Piper barberi Gamble Unresolved L WCSP (in review)
Piper barbicuspe Trel. Accepted M TRO
Piper barbinerve Trel. Synonym M TRO
Piper barbirostre Trel. Synonym M WCSP (in review)
Piper barbispicum C.DC. Unresolved L WCSP (in review)
Piper barbosanum Trel. & Yunck. Accepted M TRO
Piper barbulantherum Trel. Accepted M TRO
Piper barbulatum C.DC. Synonym M WCSP (in review)
Piper barclayanum C.DC. Unresolved L WCSP (in review)
Piper barcoense Yunck. Accepted M TRO
Piper baricuspi Trel. Unresolved L TRO
Piper barkleyi Yunck. Unresolved L WCSP (in review)
Piper baronii C. DC. Synonym M TRO
Piper barretoi Yunck. Accepted M TRO
Piper barriosense Trel. & Standl. Synonym L WCSP (in review)
Piper bartlingianum (Miq.) C.DC. Accepted M WCSP (in review)
Piper bartlingianum var. bartlingianum Synonym L TRO
Piper bartlingianum var. parimanum (Trel.) Steyerm. Synonym L WCSP (in review)
Piper baryanum C. DC. Synonym M TRO
Piper basellaefolium (Kunth) Poir. Synonym M TRO
Piper basellifolium Wall. Unresolved L WCSP (in review)
Piper basellifolium Poir. Unresolved L WCSP (in review)
Piper basilanum C.DC. Unresolved L WCSP (in review)
Piper basilobatum Trel. & Yunck. Accepted M TRO
Piper bathicarpum C.DC. Unresolved L WCSP (in review)
Piper batuanum C.DC. Unresolved L WCSP (in review)
Piper bavinum C. DC. Synonym L TRO
Piper bayamonanum Trel. Synonym M TRO
Piper beccans C. DC. Unresolved L TRO
Piper beccarii C.DC. Unresolved L WCSP (in review)
Piper begoniaefolium Hook. & Arn. Unresolved L TRO
Piper begoniicolor Trel. & Yunck. Synonym M TRO
Piper begoniicolor var. lobatum Trel. & Yunck. Synonym L TRO
Piper begoniifolium (Blume) Quisumb. [Illegitimate] Synonym M WCSP (in review)
Piper begoniifolium (Blume) Hook. & Arn. Synonym M TRO
Piper begoniiforme Yunck. Accepted M TRO
Piper bejucalanum Trel. Unresolved L WCSP (in review)
Piper belemense C. DC. Synonym L TRO
Piper bellidifolium Yunck. Accepted M TRO
Piper belloi Yunck. Accepted M TRO
Piper bellum Yunck. Accepted M TRO
Piper belterraense Yunck. Accepted M TRO
Piper bengalense C.DC. Unresolved L WCSP (in review)
Piper benianum Trel. Synonym M TRO
Piper bennettianum C. DC. Accepted M TRO
Piper benthamianum (Miq.) C.DC. Synonym M WCSP (in review)
Piper bequaertii De Wild. Synonym M TRO
Piper berembunense Chaveer. & Sudmoon Unresolved L WCSP (in review)
Piper berlandieri C. DC. Accepted M TRO
Piper bermejanum Trel. & Yunck. Accepted M TRO
Piper bermudezense Trel. Synonym M TRO
Piper berryi Steyerm. Accepted M WCSP (in review)
Piper berteroanum C. DC. Accepted M TRO
Piper betel Blanco [Spelling variant] Synonym M WCSP (in review)
Piper betle L. Accepted M WCSP (in review)
Piper betle var. densum (Blume) C. DC. Synonym L TRO
Piper betle f. densum (Blume) Fosberg Accepted L TRO
Piper betle var. marianum (Opiz) C. DC. Synonym L TRO
Piper betle f. marianum (Opiz) Fosberg Accepted L TRO
Piper betle var. psilocarpum C. DC. Synonym L TRO
Piper betleoides C.DC. Unresolved L WCSP (in review)
Piper betloides Chaveer. & Tanomtong Unresolved L WCSP (in review)
Piper biauritum C.DC. Accepted M WCSP (in review)
Piper bicolor Yunck. Synonym M TRO
Piper bidentatum Stokes Unresolved L WCSP (in review)
Piper biformipilum Yunck. Unresolved L TRO
Piper bigelovii Trel. Synonym M WCSP (in review)
Piper bikanum O.Schwartz Unresolved L WCSP (in review)
Piper bilineatum Blume Unresolved L WCSP (in review)
Piper bilobulatum C.DC. Unresolved L WCSP (in review)
Piper biolleyi C.DC. Accepted M WCSP (in review)
Piper bipedale C.DC. Unresolved L WCSP (in review)
Piper bipunctatum C.DC. Unresolved L WCSP (in review)
Piper biritak Trel. & Standl. Accepted M TRO
Piper birmanicum C.DC. Unresolved L WCSP (in review)
Piper biroi K.Schum. Unresolved L WCSP (in review)
Piper bisacuminata Trel. Unresolved L TRO
Piper bisasperatum Trel. Accepted M WCSP (in review)
Piper biseriatum C.DC. Accepted M WCSP (in review)
Piper bisexuale C.DC. Unresolved L WCSP (in review)
Piper bistigmatum C.DC. Unresolved L WCSP (in review)
Piper biunciale Poir. Unresolved L WCSP (in review)
Piper bivalvantherum C.DC. Unresolved L WCSP (in review)
Piper blanchetii (Miq.) C. DC. Accepted L TRO
Piper blancoi Merr. Unresolved L WCSP (in review)
Piper blandum Jacq. Synonym M WCSP (in review)
Piper blattarum Spreng. Accepted M TRO
Piper blepharilepidum Trel. Synonym M WCSP (in review)
Piper blumei (Miq.) Backer Unresolved L WCSP (in review)
Piper bocasense Trel. Synonym M WCSP (in review)
Piper boconoense Trel. & Yunck. Synonym M WCSP (in review)
Piper boehmeriifolium (Miq.) Wall. ex C. DC. Accepted L TRO
Piper boehmeriifolium var. boehmeriifolium Synonym L TRO
Piper boehmeriifolium var. glabricaule (C. DC.) M.G. Gilbert & N.H. Xia Accepted L TRO
Piper boehmeriifolium var. tonkinense C. DC. Synonym L TRO
Piper boerlagei C.DC. Unresolved L WCSP (in review)
Piper bogotense C.DC. Accepted M WCSP (in review)
Piper boissierianum C. DC. Accepted M TRO
Piper boivinii C. DC. Accepted M TRO
Piper bojonyum C.DC. Unresolved L WCSP (in review)
Piper bolanicum Schltr. ex R.O.Gardner Unresolved L WCSP (in review)
Piper bolivaranum Yunck. Accepted M WCSP (in review)
Piper bolivianum C. DC. Accepted M TRO
Piper bombycatum Noronha Unresolved L WCSP (in review)
Piper bonii C. DC. Accepted M TRO
Piper bonii var. bonii Synonym L TRO
Piper bonthainense C.DC. Unresolved L WCSP (in review)
Piper bontianum C.DC. Unresolved L WCSP (in review)
Piper boorsroae C.DC. Unresolved L WCSP (in review)
Piper bopianum Trel. Synonym M TRO
Piper boquetense Yunck. Accepted M TRO
Piper boquianum Trel. & Yunck. Accepted M TRO
Piper borbonense (Miq.) C. DC. Accepted M TRO
Piper borneense N.E.Br. Unresolved L WCSP (in review)
Piper borucanum C. DC. Synonym M TRO
Piper bosnicanum C.DC. Accepted M WCSP (in review)
Piper botrytes Vahl Unresolved L WCSP (in review)
Piper botterii C. DC. Accepted M TRO
Piper boucheanum C.DC. Unresolved L WCSP (in review)
Piper bourgeaui C.DC. Unresolved L WCSP (in review)
Piper bowiei Yunck. Accepted M TRO
Piper brachipilum Yunck. Accepted M TRO
Piper brachistopodum C.DC. Synonym M WCSP (in review)
Piper brachypetiolatum Yunck. Accepted M TRO
Piper brachyphyllum Willd. Unresolved L WCSP (in review)
Piper brachypodon (Benth.) C. DC. Accepted L TRO
Piper brachypodon f. hirtella C. DC. Synonym L TRO
Piper brachypus Trel. Accepted M TRO
Piper brachyrachis C.H.Wright Unresolved L WCSP (in review)
Piper brachystachyon Vahl Unresolved L WCSP (in review)
Piper brachystachyum Vahl Synonym M TRO
Piper brachystylum Trel. Accepted M TRO
Piper brachytrichum Trel. Accepted M TRO
Piper bracteatum Thomps. Synonym M TRO
Piper bradei Yunck. Accepted M TRO
Piper brasiliense C. DC. Accepted M TRO
Piper brassii Trel. Unresolved L WCSP (in review)
Piper bredemeyeri J.Jacq. Accepted M WCSP (in review)
Piper bredemeyeri var. angustifolium Trel. & Yunck. Synonym L WCSP (in review)
Piper brenesii C. DC. Synonym M TRO
Piper breve C.DC. Synonym M WCSP (in review)
Piper breve var. bellae-vistae Trel. Synonym L TRO
Piper breve var. divaricatum Trel. Synonym L TRO
Piper breve var. pallidineurum Trel. Synonym L TRO
Piper breve var. pseudodumeticola Trel. Synonym L TRO
Piper breve var. pseudofatoanum Trel. Synonym L TRO
Piper brevesanum Yunck. Accepted M WCSP (in review)
Piper brevestrigillosum Trel. Accepted M TRO
Piper breviamentum C.DC. Unresolved L WCSP (in review)
Piper breviantherum C.DC. Unresolved L WCSP (in review)
Piper brevicaule C. DC. Synonym M TRO
Piper brevicuspe Merr. Unresolved L WCSP (in review)
Piper brevifollum C.DC. Unresolved L WCSP (in review)
Piper brevilimbum C. DC. Accepted M TRO
Piper brevipedicellatum Bornst. Accepted M TRO
Piper brevipedunculatum C. DC. Accepted M TRO
Piper brevipedunculum Trel. Synonym L TRO
Piper brevipes C.DC. Unresolved L WCSP (in review)
Piper brevispicatum Opiz Synonym L WCSP (in review)
Piper brevispicum C. DC. Accepted M TRO
Piper brevistigmum C.DC. Unresolved L WCSP (in review)
Piper brevistipatum C.DC. Unresolved L WCSP (in review)
Piper brevistylum C. DC. Synonym M TRO
Piper brisasense Yunck. Accepted M TRO
Piper brittonorum Trel. Unresolved L WCSP (in review)
Piper broadwayi C.DC. Unresolved L WCSP (in review)
Piper brongniartii (Miq.) C. DC. Accepted L TRO
Piper brownsbergense Yunck. Accepted M TRO
Piper brujoense Trel. & Standl. Synonym M WCSP (in review)
Piper bryogetum C.DC. Synonym M WCSP (in review)
Piper buchii Urb. Unresolved L WCSP (in review)
Piper buchtienii C. DC. Synonym M TRO
Piper buchtienii var. charopampanum (C. DC.) Yunck. Synonym L TRO
Piper bullatifolium Sodiro Accepted M TRO
Piper bullatilimbum C. DC. Accepted M TRO
Piper bullatum C.DC. Unresolved L WCSP (in review)
Piper bullatum Vahl Unresolved L WCSP (in review)
Piper bullosum C. DC. Accepted M TRO
Piper bullulatum M.A.Jaram. Unresolved L WCSP (in review)
Piper bullulifolium Trel. Synonym M WCSP (in review)
Piper burenii C.DC. Unresolved L WCSP (in review)
Piper burkillii Ridl. Unresolved L WCSP (in review)
Piper buruanum Miq. Unresolved L WCSP (in review)
Piper cabadbaranum C.DC. Unresolved L WCSP (in review)
Piper cabagranum C.DC. Synonym M WCSP (in review)
Piper cabaianum Trel. Unresolved L WCSP (in review)
Piper caballocochanum Trel. Accepted M TRO
Piper cabellense C.DC. Synonym M WCSP (in review)
Piper cabralanum C. DC. Accepted M TRO
Piper cachimboense Yunck. Accepted M TRO
Piper cacuminum C.DC. Unresolved L WCSP (in review)
Piper cadenaense Tebbs Unresolved L WCSP (in review)
Piper cadenaensis Tebbs Accepted M TRO
Piper caducibracteum C.DC. Unresolved L WCSP (in review)
Piper caeruleifolium Trel. Synonym M WCSP (in review)
Piper cagayanense C.DC. Unresolved L WCSP (in review)
Piper cahuapanasense Trel. Synonym L TRO
Piper cajamarcanum Yunck. Accepted M TRO
Piper cajambrense Trel. & Yunck. Accepted M TRO
Piper caladiifolium (Miq.) C. DC. Accepted L TRO
Piper calamistratum Trel. Accepted M TRO
Piper calanyanum Trel. & Yunck. Accepted M TRO
Piper calcaratum C. DC. Synonym M TRO
Piper calcariforme Tebbs Accepted M TRO
Piper calceolarium C.DC. Accepted M WCSP (in review)
Piper calceolarium var. magnifolium (C. DC.) Trel. & Yunck. Synonym L TRO
Piper calceolatum C. DC. Synonym M TRO
Piper calceolatum var. magnifolium C. DC. Synonym L TRO
Piper calciseligens Trel. ex Stehlé Unresolved L WCSP (in review)
Piper caldasianum (Miq.) Yunck. Accepted L TRO
Piper caldense C. DC. Accepted M TRO
Piper caledonianum C. DC. Synonym M TRO
Piper caliendriferum Trel. Unresolved L WCSP (in review)
Piper californicum C. Presl ex Opiz Synonym L TRO
Piper callcanense Trel. Accepted M TRO
Piper callibracteum C.DC. Synonym M WCSP (in review)
Piper callosum Ruiz & Pav. Accepted M TRO
Piper callosum var. franciscoanum C. DC. Synonym L TRO
Piper calocoma (Miq.) C.DC. Synonym M WCSP (in review)
Piper calophyllum C. DC. Accepted M TRO
Piper calvescens Trel. Synonym L WCSP (in review)
Piper calvescens var. aguanum Trel. Synonym L WCSP (in review)
Piper calvescens var. cangrejalense Trel. Synonym L WCSP (in review)
Piper calvescens var. pedunculatum Trel. Synonym L WCSP (in review)
Piper calvescens var. potrerillosense Trel. Synonym L WCSP (in review)
Piper calvescentinerve Trel. Accepted M TRO
Piper calvibaccum Trel. Accepted M TRO
Piper calvifolium C.DC. Unresolved L WCSP (in review)
Piper calvilimbum C.DC. Unresolved L WCSP (in review)
Piper calvirameum C. DC. Synonym M TRO
Piper cambessedesii (Miq.) C. DC. Accepted M TRO
Piper cambessedesii var. opulifolium (Miq.) C. DC. Accepted L TRO
Piper cambodianum C.DC. Unresolved L WCSP (in review)
Piper camiloi Trel. & Yunck. Accepted M TRO
Piper camiloi var. glabratum Yunck. Synonym L TRO
Piper campanum Yunck. Accepted M TRO
Piper camphoriferum C. DC. Accepted M TRO
Piper campii Yunck. Accepted M TRO
Piper camptostachys Urb. Unresolved L WCSP (in review)
Piper canaense Standl. Synonym M TRO
Piper canaliculatum Klotzsch ex Miq. Unresolved L WCSP (in review)
Piper canaliculatum Opiz Unresolved L WCSP (in review)
Piper canaliculum Tebbs Accepted M TRO
Piper canastrense E.F.Guim. & Carv.-Silva Unresolved L WCSP (in review)
Piper canavillosum Steyerm. Accepted M WCSP (in review)
Piper candelarianum C.DC. Synonym L WCSP (in review)
Piper candelarianum var. latifolium C. DC. Synonym L TRO
Piper candelarianum var. pedroanum Trel. Synonym L TRO
Piper candelarianum var. sepium (C. DC.) Trel. Synonym L TRO
Piper candelarium C.DC. Unresolved L WCSP (in review)
Piper candelosum C.DC. Unresolved L WCSP (in review)
Piper candicans Sodiro Synonym M TRO
Piper candidum Blume Unresolved L WCSP (in review)
Piper candollei Sodiro Accepted M TRO
Piper canelosense Trel. & Yunck. Synonym M TRO
Piper canescenticaule Trel. Accepted M TRO
Piper canescenticaule var. canescenticaule Synonym L TRO
Piper canescenticaule var. expansum Trel. Synonym L TRO
Piper caninum Blume Accepted M WCSP (in review)
Piper canyazasense Trel. Synonym M WCSP (in review)
Piper capacibracteum Trel. Synonym M WCSP (in review)
Piper caparonum C. DC. Synonym M TRO
Piper capense L.f. Accepted M WCSP (in review)
Piper capense var. capense Synonym L TRO
Piper capillipes Trel. & Yunck. Accepted M TRO
Piper capillistipes Trel. Accepted M TRO
Piper capitarianum Yunck. Accepted M WCSP (in review)
Piper capitellatum C.DC. Unresolved L WCSP (in review)
Piper captum Trel. Synonym M WCSP (in review)
Piper caquetanum Yunck. Unresolved L WCSP (in review)
Piper carabobense C.DC. Synonym M WCSP (in review)
Piper caracasanum Bredem. ex Link Accepted M WCSP (in review)
Piper caracasanum var. firmius C.DC. Synonym L WCSP (in review)
Piper caraccasanum Opiz Unresolved L WCSP (in review)
Piper caracolanum C. DC. Accepted M TRO
Piper cararense Trel. & Yunck. Accepted M TRO
Piper carautensei E.F.Guim. & Carv.-Silva Unresolved L WCSP (in review)
Piper carboneranum Yunck. Synonym M WCSP (in review)
Piper cardenasii Trel. Synonym M TRO
Piper cardiophyllum C.DC. Unresolved L WCSP (in review)
Piper caripense Kunth Synonym M WCSP (in review)
Piper carizalanum C. DC. Accepted M TRO
Piper carlosii Trel. & Yunck. Accepted M TRO
Piper carminis Trel. Synonym M WCSP (in review)
Piper carnibracteum C.DC. Unresolved L WCSP (in review)
Piper carniconnectivum C. DC. Accepted M TRO
Piper carniovarium C.DC. Unresolved L WCSP (in review)
Piper carnistigmum C.DC. Unresolved L WCSP (in review)
Piper carnistilum C.DC. Unresolved L WCSP (in review)
Piper carnosicaule Trel. Synonym M TRO
Piper carolinanum Trel. Synonym M TRO
Piper carolinense Hosok. Unresolved L WCSP (in review)
Piper carpapatanum Trel. Synonym M TRO
Piper carpinifolium (C. Presl) C. DC. Accepted M TRO
Piper carpinteranum C.DC. Accepted M WCSP (in review)
Piper carpunya Ruiz & Pav. Accepted M TRO
Piper carpupija Pers. Unresolved L WCSP (in review)
Piper carrapanum Trel. Accepted M TRO
Piper carrapanum var. carrapanum Synonym L TRO
Piper carrapanum var. lancifolium Trel. Synonym L TRO
Piper carrilloanum C.DC. Accepted M WCSP (in review)
Piper cartagoanum C.DC. Synonym M WCSP (in review)
Piper casapiense (Miq.) C. DC. Accepted L TRO
Piper cascajalanum C. DC. Accepted M TRO
Piper casimirianum Hemsl. Synonym M WCSP (in review)
Piper casitense Trel. Synonym M WCSP (in review)
Piper cassinoides Opiz Accepted M TRO
Piper casteloense Yunck. Accepted M TRO
Piper castroanum Trel. & Yunck. Accepted M TRO
Piper catacryptum Trel. Synonym M TRO
Piper catalinianum Trel. Synonym M WCSP (in review)
Piper catalpifolium Kunth Synonym M TRO
Piper cataractarum Trel. Synonym M TRO
Piper cathayanum M.G. Gilbert & N.H. Xia Accepted L TRO
Piper cativalense Trel. Accepted M TRO
Piper catripense Yunck. Synonym M TRO
Piper catubigense Merr. Unresolved L WCSP (in review)
Piper catucheanum Trel. & Yunck. Synonym M TRO
Piper caucaense Yunck. Accepted M TRO
Piper caucasanum Bredemeyer Unresolved L TRO
Piper caudatifolium Trel. Synonym M WCSP (in review)
Piper caudatum Vahl Synonym M WCSP (in review)
Piper caudefactum Trel. & Yunck. Synonym M TRO
Piper caudilimbum C.DC. Unresolved L WCSP (in review)
Piper cauranum Trel. ex Ll.Williams [Invalid] Synonym M WCSP (in review)
Piper cavalcantei Yunck. Accepted M TRO
Piper cavendishioides Trel. & Yunck. Accepted M TRO
Piper cayoense Trel. Synonym M WCSP (in review)
Piper ceanothifolium Kunth Synonym L TRO
Piper ceibense C.DC. Synonym M WCSP (in review)
Piper cejanum Trel. & Yunck. Accepted M TRO
Piper celatipetiolum Trel. Synonym M TRO
Piper celatipetiolum var. brenesii Trel. Synonym L TRO
Piper celebicum Blume Unresolved L WCSP (in review)
Piper celer Trel. Accepted M TRO
Piper celsum Trel. Accepted M TRO
Piper celtidifolium Kunth Synonym M WCSP (in review)
Piper celtidiforme Opiz Accepted M WCSP (in review)
Piper cenocladum C.DC. Accepted M WCSP (in review)
Piper centroense Trel. & Yunck. Accepted M TRO
Piper ceramicum (Miq.) C. DC. Accepted L TRO
Piper cercidiphyllum Trel. Synonym M TRO
Piper cernuum Vell. Accepted M WCSP (in review)
Piper cernuum var. araguense (Trel. & Yunck.) Steyerm. Accepted L WCSP (in review)
Piper cernuum var. cernuum Synonym L TRO
Piper cernuum var. perlongispicum (Yunck.) Steyerm. Accepted L WCSP (in review)
Piper cerro-puntoense Trel. Synonym M WCSP (in review)
Piper cerronianum Steyerm. Accepted M WCSP (in review)
Piper certeguiense Trel. & Yunck. Accepted M TRO
Piper ceylanicum C.DC. Unresolved L WCSP (in review)
Piper chaba Hunter Synonym L TRO
Piper chagresianum Trel. Synonym M WCSP (in review)
Piper chairecoides C. DC. Unresolved L TRO
Piper chalhuapuquianum Trel. Accepted M TRO
Piper challuapuquianum Trel. Unresolved L WCSP (in review)
Piper chamissonis (Miq.) Steud. Accepted M WCSP (in review)
Piper chamissonis (Miq.) Steud. ex C. DC. Synonym M TRO
Piper chamissonis var. rubellibracteatum C. DC. Synonym L TRO
Piper chanchamayanum Trel. Accepted M TRO
Piper chanekii Trel. Synonym M TRO
Piper changuinolanum Trel. Accepted M TRO
Piper charopampanum C. DC. Synonym M TRO
Piper chaudocanum C. DC. Accepted M TRO
Piper chavicoide (Miq.) C. DC. Accepted M TRO
Piper chawya Buch.-Ham. Unresolved L WCSP (in review)
Piper chelseanum Roem. & Schult. Unresolved L WCSP (in review)
Piper cheyennense Trel. & Standl. Synonym M WCSP (in review)
Piper chiadoense Yunck. Accepted M TRO
Piper chiangdaoense Suwanph. & Chantar. Accepted M WCSP (in review)
Piper chichankanabanum Trel. Synonym M WCSP (in review)
Piper chilense C.DC. Unresolved L WCSP (in review)
Piper chimantanum Yunck. Synonym M WCSP (in review)
Piper chimborazoense Yunck. Accepted M TRO
Piper chimonanthifolium (Kunth) Kunth ex Steud. Accepted M WCSP (in review)
Piper chimonanthifolium Kunth Unresolved L TRO
Piper chinantlense M. Martens & Galeotti Accepted M TRO
Piper chinense Miq. Accepted M TRO
Piper chiquihuitense Trel. & Standl. Accepted M TRO
Piper chiriquinum C.DC. Synonym M WCSP (in review)
Piper chirripoense C. DC. Synonym M TRO
Piper chlorocarpum C.DC. Unresolved L WCSP (in review)
Piper chlorostachyum C.DC. Unresolved L WCSP (in review)
Piper christyi C.DC. Unresolved L WCSP (in review)
Piper chromatolepis Trel. Accepted M TRO
Piper chrysolepidum Trel. Unresolved L WCSP (in review)
Piper chrysoneurum Trel. Accepted M TRO
Piper chrysostachyum C.DC. Accepted M WCSP (in review)
Piper chuarense M.A.Jaram. & Callejas Unresolved L WCSP (in review)
Piper chumboense Yunck. Accepted M TRO
Piper churruyacoanum Trel. & Yunck. Accepted M TRO
Piper churumayu Ruiz & Pav. Accepted M TRO
Piper chuvya Miq. Unresolved L WCSP (in review)
Piper chuvya Hunter ex C.DC. Unresolved L WCSP (in review)
Piper cicatriculosum Trel. & Yunck. Accepted M TRO
Piper cihuatlanense Bornst. Accepted M TRO
Piper ciliaris C. DC. Unresolved L TRO
Piper ciliatifolium Trel. Synonym M TRO
Piper ciliatum (Kunth) Poir. Synonym M TRO
Piper cilibracteum C.DC. Unresolved L WCSP (in review)
Piper cililimbum Yunck. Accepted M WCSP (in review)
Piper ciliomarginatum Görts & Christenh. Accepted M TRO
Piper cincinnatum Trel. Synonym M TRO
Piper cinerascens C.DC. ex Micheli Unresolved L WCSP (in review)
Piper cinereocaule C.DC. Unresolved L WCSP (in review)
Piper cinereonervosum Trel. Synonym M TRO
Piper cinereoramulum Trel. Synonym M TRO
Piper cinereum C. DC. Accepted M TRO
Piper cingens C. DC. Accepted M TRO
Piper ciniflonis Trel. Accepted M TRO
Piper circinnatum (Link) Schult. Synonym M WCSP (in review)
Piper circulare Desf. ex C. DC. Synonym M TRO
Piper circumspectantis Trel. Synonym M TRO
Piper cirratum Trel. Accepted M TRO
Piper cisnerosense Trel. & Yunck. Accepted M TRO
Piper cispontinum Trel. Accepted M TRO
Piper citrifolium Lam. Synonym M TRO
Piper citrifolium var. panamense (C. DC.) C. DC. Synonym L TRO
Piper citrifolium var. parkerianum (Miq.) Trel. & Yunck. Synonym L WCSP (in review)
Piper clarkei C.DC. Unresolved L WCSP (in review)
Piper clathratum C. DC. Accepted M TRO
Piper claudicans Trel. Synonym L TRO
Piper claudii C. DC. Accepted M TRO
Piper claussenianum (Miq.) C. DC. Accepted L TRO
Piper clavibracteum C.DC. Unresolved L WCSP (in review)
Piper clavuliger Trel. Unresolved L WCSP (in review)
Piper clavuligerum Trel. Synonym M TRO
Piper clavulispicum Trel. Synonym M WCSP (in review)
Piper clemensiae C.DC. Unresolved L WCSP (in review)
Piper clementis León Unresolved L WCSP (in review)
Piper clethristachyum Rich. Synonym M TRO
Piper clivicola Standl. & L.O.Williams Synonym M WCSP (in review)
Piper clusii (Miq.) C.DC. Synonym M WCSP (in review)
Piper clusiifolium Jacq. Synonym M TRO
Piper clypeatum Wall. Unresolved L WCSP (in review)
Piper coactaepilum Trel. Synonym M TRO
Piper coactile Ridl. Unresolved L WCSP (in review)
Piper coactipilum Trel. Unresolved L WCSP (in review)
Piper coactoris Trel. Synonym M WCSP (in review)
Piper coarctatum Trel. Synonym M TRO
Piper coariense Yunck. Accepted M TRO
Piper cobanense Trel. Synonym L WCSP (in review)
Piper cobanense var. sarculatum Trel. Synonym L WCSP (in review)
Piper cobarianum Trel. & Yunck. Accepted M TRO
Piper coccoloboides Kunth Synonym M TRO
Piper cocherense Trel. Synonym M TRO
Piper cochleatum Sodiro Synonym M TRO
Piper cocornanum Trel. & Yunck. Accepted M TRO
Piper cocquericotense Trel. Synonym M WCSP (in review)
Piper coeloneurum Diels Accepted M TRO
Piper cogolloi Callejas Unresolved L TRO
Piper coilostachyum C. DC. Accepted M TRO
Piper cojimaranum Trel. Unresolved L WCSP (in review)
Piper colaphitolerans Trel. Synonym M WCSP (in review)
Piper colemanense Trel. Synonym M WCSP (in review)
Piper colipanum C. DC. Accepted M TRO
Piper colligatispicum Trel. & Yunck. Accepted M TRO
Piper collinum C.DC. Accepted M WCSP (in review)
Piper collinum var. flagellicuspe Trel. Synonym L WCSP (in review)
Piper colombianum C. DC. Synonym M TRO
Piper colon-insulae Trel. Accepted M TRO
Piper colonense C.DC. Accepted M WCSP (in review)
Piper colonum C.Presl Unresolved L WCSP (in review)
Piper coloratum (Kunth) Poir. Synonym M TRO
Piper colotlipanense Bornst. Accepted M TRO
Piper colubrinum Link Synonym L WCSP (in review)
Piper colubrinum (Link ex Kunth) Link ex C. DC. Synonym L TRO
Piper colubrinum var. adenophyllum (Miq.) C. DC. Synonym L TRO
Piper comasense Trel. Accepted M TRO
Piper comatum Trel. Synonym M WCSP (in review)
Piper comayaguanum Trel. Synonym L WCSP (in review)
Piper come Trel. & Standl. Accepted M TRO
Piper commutatum Steud. Accepted M TRO
Piper compactum Trel. Synonym L WCSP (in review)
Piper comptonii S.Moore Unresolved L WCSP (in review)
Piper concavum (Ruiz & Pav.) Vahl Synonym M TRO
Piper concepcionis Trel. Synonym M TRO
Piper conceptum Trel. Synonym M TRO
Piper concinnatoris Yunck. Accepted M TRO
Piper concinnifolium Trel. Synonym M WCSP (in review)
Piper concinnum Haw. Synonym M TRO
Piper concinnum var. trinitense C. DC. Synonym L TRO
Piper concoinum DC. Unresolved L TRO
Piper concretiflorum C. DC. Accepted M TRO
Piper conditum Trel. Accepted M TRO
Piper conditum var. conditum Synonym L TRO
Piper condotoense Trel. & Yunck. Accepted M TRO
Piper conejoense Trel. & Yunck. Accepted M TRO
Piper confertinodum (Trel. & Yunck.) M.A. Jaram. & R. Callejas P. Accepted M TRO
Piper confusionis Trel. Accepted M TRO
Piper confusum C.DC. Unresolved L WCSP (in review)
Piper congestum Poir. Unresolved L WCSP (in review)
Piper conibaccum C.DC. Unresolved L WCSP (in review)
Piper conispicum Trel. Accepted M TRO
Piper conjugatum Poir. Unresolved L WCSP (in review)
Piper conquistanum Yunck. Accepted M TRO
Piper consanguineum (Kunth) Steud. Accepted M WCSP (in review)
Piper consanguineum Kunth Unresolved L TRO
Piper conscendens Trel. Synonym M TRO
Piper consociatum C.DC. Unresolved L WCSP (in review)
Piper constanzanum Urb. Unresolved L WCSP (in review)
Piper constipatispicum Trel. Accepted M TRO
Piper constipatispicum var. constipatispicum Synonym L TRO
Piper constipatispicum var. lanosum Trel. Synonym L TRO
Piper constipatispicum var. tonsum Trel. Synonym L TRO
Piper contamanum Trel. Accepted M TRO
Piper controversum Steud. Accepted M TRO
Piper convallariodorum C. DC. Synonym M TRO
Piper conversum Trel. Synonym L WCSP (in review)
Piper convexum Blume Unresolved L WCSP (in review)
Piper cookii Trel. Synonym M TRO
Piper cooperi Yunck. Synonym M WCSP (in review)
Piper copacabanense Trel. Synonym M TRO
Piper copelandii C.DC. Unresolved L WCSP (in review)
Piper copeyanum (C. DC.) Trel. Synonym M TRO
Piper coralfalgense C. DC. Accepted M TRO
Piper corcovadense C.DC. Unresolved L WCSP (in review)
Piper corcovadensis (Miq.) C. DC. Accepted M TRO
Piper corcovadensis var. corcovadensis Synonym L TRO
Piper cordatilimbum Quisumb. Unresolved L WCSP (in review)
Piper cordatum C. DC. Accepted M TRO
Piper cordifolium Sw. Unresolved L WCSP (in review)
Piper cordifolium Sessé & Moc. Unresolved L WCSP (in review)
Piper cordiforme Steyerm. Accepted M WCSP (in review)
Piper cordilimbum C. DC. Accepted M TRO
Piper cordillerianum C. DC. Accepted M TRO
Piper cordoncillo Trel. Unresolved L WCSP (in review)
Piper cordovanum C. DC. Accepted M TRO
Piper cordulatum C. DC. Accepted M TRO
Piper cordulatum var. granulatum Trel. Synonym L TRO
Piper coriaceilimbum C. DC. Accepted M TRO
Piper coriaceum Vahl Unresolved L WCSP (in review)
Piper corintoananum Yunck. Accepted M WCSP (in review)
Piper corintoanum Yunck. Accepted M TRO
Piper cornifolium Kunth Accepted M TRO
Piper cornilimbum C.DC. Unresolved L WCSP (in review)
Piper coronanum Trel. & Standl. Accepted M TRO
Piper coronatibracteum Trel. Synonym M WCSP (in review)
Piper corozalanum Trel. Synonym L WCSP (in review)
Piper corpulentispicum Trel. & Yunck. Accepted M TRO
Piper correptum Trel. Synonym M TRO
Piper corrugatum Kuntze Accepted M WCSP (in review)
Piper corte-scabrum Trel. Accepted M TRO
Piper coruscans Kunth Accepted M WCSP (in review)
Piper coruscans var. membranaceum (C.DC.) Steyerm. Synonym L WCSP (in review)
Piper corylifolium Kunth Synonym M TRO
Piper corylistachyon (Miq.) C. DC. Accepted L TRO
Piper corylistachyopse Trel. Unresolved L TRO
Piper corylistachyopsis Trel. Unresolved L WCSP (in review)
Piper cosmianum C.DC. Unresolved L WCSP (in review)
Piper costaricense C.DC. Synonym M WCSP (in review)
Piper costatum C. DC. Accepted M TRO
Piper costulatum C.DC. Unresolved L WCSP (in review)
Piper cowanii (Yunck.) Yunck. Accepted M TRO
Piper coyolesense Trel. Synonym M WCSP (in review)
Piper crassamentum Trel. Synonym M TRO
Piper crassicaule Trel. Synonym L WCSP (in review)
Piper crassifolium (Miq.) C. DC. Synonym L TRO
Piper crassilimbum C.DC. Unresolved L WCSP (in review)
Piper crassinervium Kunth Accepted M WCSP (in review)
Piper crassinervium var. crassinervium Synonym L TRO
Piper crassinervium var. hartwegianum C. DC. Synonym L TRO
Piper crassinervium var. tocotanum (C.DC.) Yunck. Synonym L WCSP (in review)
Piper crassinodum C.DC. Unresolved L WCSP (in review)
Piper crassipedunculum Yunck. Accepted M TRO
Piper crassipes Korth. ex C.DC. Unresolved L WCSP (in review)
Piper crassispicatum Opiz Accepted M TRO
Piper crassistilum Yunck. Accepted M WCSP (in review)
Piper crassistipes C.DC. Unresolved L WCSP (in review)
Piper crassum Vell. [Illegitimate] Synonym L WCSP (in review)
Piper crebrinerve Willd. ex Link Unresolved L WCSP (in review)
Piper crebrinode Kunth Unresolved L WCSP (in review)
Piper crebrinodum C.DC. Accepted M WCSP (in review)
Piper crenatifolium Trel. & Yunck. Accepted M TRO
Piper crenulatibracteum C.DC. Unresolved L WCSP (in review)
Piper crenulatum Steyerm. Accepted M WCSP (in review)
Piper cricamolense Trel. Synonym M TRO
Piper criniovarium Yunck. Unresolved L WCSP (in review)
Piper crispans Trel. Synonym M WCSP (in review)
Piper crispatimargine Trel. Synonym M TRO
Piper crispatum A.C.Sm. Unresolved L WCSP (in review)
Piper cristalinanum Trel. & Yunck. Synonym M TRO
Piper cristatum C.DC. Unresolved L WCSP (in review)
Piper cristicola Trel. Synonym M WCSP (in review)
Piper cristinanum Trel. & Standl. Accepted M TRO
Piper crocatum Ruiz & Pav. Accepted M TRO
Piper cryptocarpum Trel. & Yunck. Synonym M TRO
Piper cryptopodon C. DC. Accepted M TRO
Piper crystallinum Vahl Synonym M TRO
Piper cuasianum Standl. Synonym M WCSP (in review)
Piper cuatrecasasii Trel. Unresolved L WCSP (in review)
Piper cubataonum C.DC. Accepted M WCSP (in review)
Piper cubeba Bojer Unresolved L WCSP (in review)
Piper cubeba L.f. Unresolved L WCSP (in review)
Piper cubeba Vahl Unresolved L WCSP (in review)
Piper cubense C.DC. Unresolved L WCSP (in review)
Piper cubilquitzianum C. DC. Synonym L TRO
Piper cuernavacanum C. DC. Synonym M TRO
Piper cufodontii Trel. Unresolved L WCSP (in review)
Piper cufodontisii Trel. Unresolved L TRO
Piper cujabanum Silva Manso ex Miq. Unresolved L WCSP (in review)
Piper culebranum C. DC. Synonym M TRO
Piper cumanense Kunth Accepted M WCSP (in review)
Piper cumaralense C.DC. Accepted M WCSP (in review)
Piper cumbasonum C. DC. Accepted M TRO
Piper cumbotianum C.DC. Accepted M WCSP (in review)
Piper cumbricola Trel. Unresolved L WCSP (in review)
Piper cumingianum Miq. Unresolved L WCSP (in review)
Piper cundinamarcanum Trel. [Invalid] Synonym L WCSP (in review)
Piper cuneatum Hook. ex Miq. Unresolved L WCSP (in review)
Piper cuneifolium Jacq. Synonym M TRO
Piper cuniculorum Trel. & Yunck. Accepted M TRO
Piper cunninghamii Yunck. Accepted M TRO
Piper cupreatum Trel. Accepted M TRO
Piper cupreatum var. cupreatum Synonym L TRO
Piper curridabatanum Trel. Synonym M WCSP (in review)
Piper curtifolium C.DC. Unresolved L WCSP (in review)
Piper curtilimbum C.DC. Unresolved L WCSP (in review)
Piper curtipedunculum C. DC. Synonym M TRO
Piper curtipetiolum C.DC. Unresolved L WCSP (in review)
Piper curtirachis W.C. Burger Accepted M TRO
Piper curtisii C.DC. Unresolved L WCSP (in review)
Piper curtispicum C. DC. Accepted M TRO
Piper curtistilum C. DC. Accepted M TRO
Piper curtistipes C.DC. Unresolved L WCSP (in review)
Piper curumaya D.Dietr. Unresolved L WCSP (in review)
Piper curvamentum Ruiz & Pav. Unresolved L TRO
Piper curvatipes Trel. Accepted M TRO
Piper curvatum Ruiz & Pav. Accepted M TRO
Piper curvinervium R. Callejas P. & Betancur Accepted M TRO
Piper curvipilum Trel. Unresolved L WCSP (in review)
Piper cuspidatum Ham. Unresolved L WCSP (in review)
Piper cuspidibracteatum Yunck. Accepted M TRO
Piper cuspidilimbum C. DC. Accepted M TRO
Piper cuspidispicum Trel. Accepted M WCSP (in review)
Piper cutucuense Yunck. Accepted M TRO
Piper cuyabanum C. DC. Accepted M TRO
Piper cuyunianum Steyerm. Accepted M WCSP (in review)
Piper cyanophyllum Trel. Synonym L WCSP (in review)
Piper cyclophyllum Trel. Synonym M WCSP (in review)
Piper cyclopllyllum Trel. Unresolved L WCSP (in review)
Piper cyphophyllopse Trel. & Yunck. Accepted M TRO
Piper cyphophyllum C. DC. Synonym M TRO
Piper cyprium Trel. & Yunck. Accepted M TRO
Piper cyrtopodon C. DC. Accepted M TRO
Piper cyrtostachys Ridl. Unresolved L WCSP (in review)
Piper dactylostigmum Yunck. Accepted M TRO
Piper daedalum Trel. Accepted M TRO
Piper dagamiense C.DC. Unresolved L WCSP (in review)
Piper dagatpanum C.DC. Unresolved L WCSP (in review)
Piper daguanum C. DC. Accepted M TRO
Piper damazii C.DC. Unresolved L WCSP (in review)
Piper damiaoshanense Y.Q. Tseng Accepted M TRO
Piper daniel-gonzalezii Trel. Accepted M TRO
Piper darienense C.DC. Accepted M WCSP (in review)
Piper darienense var. tricuspe (Miq.) Trel. Synonym L TRO
Piper dariense C. DC. Synonym M TRO
Piper dasyoura (Miq.) C. DC. Accepted L TRO
Piper dasypodum (Miq.) C. DC. Accepted L TRO
Piper dasypogon C. DC. Synonym M TRO
Piper davaoense C.DC. Unresolved L WCSP (in review)
Piper davidianum C.DC. Synonym M WCSP (in review)
Piper davidsonii Yunck. Accepted M WCSP (in review)
Piper dawsonii Trel. Synonym M WCSP (in review)
Piper deamii Trel. Accepted M WCSP (in review)
Piper deamii var. yojoanum Trel. Synonym L WCSP (in review)
Piper debile C. DC. Synonym M TRO
Piper debilicaule Trel. & Yunck. Synonym M TRO
Piper decipiens (Miq.) C. DC. Accepted L TRO
Piper decorticans Trel. & Yunck. Synonym M TRO
Piper decrescens (Miq.) C. DC. Synonym L TRO
Piper decrescens var. ovatum C.DC. Synonym L WCSP (in review)
Piper decumanum Aubl. Unresolved L WCSP (in review)
Piper decumanum Mill. Unresolved L WCSP (in review)
Piper decumanum L. Unresolved L WCSP (in review)
Piper decurrens C.DC. Accepted M WCSP (in review)
Piper dedititium Trel. Synonym M WCSP (in review)
Piper deductum Trel. Accepted M WCSP (in review)
Piper deflexispicum Trel. Synonym M TRO
Piper degeneri A.C.Sm. Unresolved L WCSP (in review)
Piper dekkoanum C.DC. Unresolved L WCSP (in review)
Piper delatum Trel. Synonym M TRO
Piper delectans Trel. Synonym M WCSP (in review)
Piper delicatum C.DC. Unresolved L WCSP (in review)
Piper deliciasanum Steyerm. Accepted M WCSP (in review)
Piper delineatum Trel. Accepted M TRO
Piper deltoideocarpum Trel. Synonym M WCSP (in review)
Piper deltoideum Colla Unresolved L WCSP (in review)
Piper demeraranum (Miq.) C.DC. Accepted M WCSP (in review)
Piper demeraranum var. rubescens (C.DC.) Trel. & Yunck. Synonym L WCSP (in review)
Piper demeusii C.DC. Unresolved L WCSP (in review)
Piper deminutum Yunck. Synonym M WCSP (in review)
Piper demonatum Trel. Unresolved L TRO
Piper demoratum Trel. Accepted M TRO
Piper dempoanum C.DC. Unresolved L WCSP (in review)
Piper dendrophilum D.Dietr. Unresolved L WCSP (in review)
Piper dendropse Trel. Accepted M TRO
Piper dennisii Trel. Accepted M TRO
Piper densespicatum Steud. Unresolved L WCSP (in review)
Piper densibaccum C.DC. Unresolved L WCSP (in review)
Piper densiciliatum Yunck. Accepted M TRO
Piper densum Blume Synonym M TRO
Piper denudans (Miq.) C. DC. Accepted L TRO
Piper denudans var. angustifolium C. DC. Synonym L TRO
Piper denudatum Opiz Unresolved L WCSP (in review)
Piper dependens (Ruiz & Pav.) Vahl Synonym M TRO
Piper deppeanum (Schltdl. & Cham.) D. Dietr. Synonym M TRO
Piper depressibaccum Trel. Unresolved L WCSP (in review)
Piper descourtilsianum C. DC. Accepted M TRO
Piper desultorium Trel. Accepted M TRO
Piper detonsum Trel. Synonym M TRO
Piper diandrum C.DC. Synonym M WCSP (in review)
Piper diazanum Trel. Synonym M TRO
Piper diazanum var. viae-kobeanae Trel. Synonym L TRO
Piper dichotomum Ruiz & Pav. Accepted M TRO
Piper dichroostachyum Trel. & Yunck. Accepted M TRO
Piper diffamatum Trel. & Yunck. Accepted M WCSP (in review)
Piper diffundum Yunck. Accepted M TRO
Piper diffusum Blume ex Miq. Unresolved L WCSP (in review)
Piper diffusum Vahl Unresolved L WCSP (in review)
Piper diguaense Yunck. Accepted M TRO
Piper diguetianum Trel. Synonym M TRO
Piper diguetii C.DC. Unresolved L WCSP (in review)
Piper dilatatifolium Trel. & Yunck. Synonym M WCSP (in review)
Piper dilatatum Rich. Accepted M WCSP (in review)
Piper dilatatum var. acutifolium C. DC. Synonym L TRO
Piper dilatatum f. dilatatifolium (Trel. & Yunck.) Steyerm. Synonym L TRO
Piper dilatatum f. dilatatum Synonym L TRO
Piper dilatatum f. guayranum Steyerm. Accepted L TRO
Piper dilatatum var. leptocladum (C. DC.) C. DC. Synonym L TRO
Piper dilatatum var. pubescens C. DC. Synonym L TRO
Piper dilatatum f. taboganum (C. DC.) Steyerm. Synonym L TRO
Piper dimetrale C. DC. Accepted M TRO
Piper dimidiatum (C. Presl) C. DC. Accepted L TRO
Piper dimorphophyllum Trel. Synonym M WCSP (in review)
Piper dimorphotrichum Yunck. Synonym M WCSP (in review)
Piper dindingsianum C.DC. Unresolved L WCSP (in review)
Piper diospyrifolium Kunth Accepted M TRO
Piper dipterocarpinum C.DC. Unresolved L WCSP (in review)
Piper diquisanum C.DC. Synonym M WCSP (in review)
Piper discolor Balb. ex Kunth Unresolved L WCSP (in review)
Piper discolor Trel. Unresolved L WCSP (in review)
Piper discolor Schltdl. Unresolved L WCSP (in review)
Piper discolor Sw. Unresolved L WCSP (in review)
Piper discolorum Desf. Unresolved L WCSP (in review)
Piper discophorum C. DC. Synonym M TRO
Piper discriminatum Trel. & Yunck. Accepted M TRO
Piper disjunctum C. DC. Accepted M TRO
Piper dispansum Trel. Synonym M TRO
Piper disparifolium Trel. Synonym M TRO
Piper disparipes Trel. Synonym M WCSP (in review)
Piper disparipilum C. DC. Accepted M TRO
Piper disparispicum Trel. Synonym M WCSP (in review)
Piper dissimile (Kunth) Poir. Synonym M TRO
Piper dissimulans Trel. Synonym M WCSP (in review)
Piper distachyon L. Synonym M WCSP (in review)
Piper distichum Trel. & Yunck. Accepted M TRO
Piper distigmatum Yunck. Accepted M WCSP (in review)
Piper divaricatiranum C.DC. Unresolved L WCSP (in review)
Piper divaricatum G.Mey. Accepted L WCSP (in review)
Piper divergens (C. Presl) C. DC. Accepted L TRO
Piper diversifolium (Kunth) Poir. Accepted M TRO
Piper diversipilum Trel. Accepted M TRO
Piper divortans Trel. & Yunck. Accepted M TRO
Piper divulgatum Trel. & Yunck. Accepted M WCSP (in review)
Piper djabia C.DC. Unresolved L WCSP (in review)
Piper dodsonii Yunck. Accepted M TRO
Piper dogotense C. DC. Accepted M TRO
Piper dolabriforme (Kunth) Poir. Synonym M TRO
Piper dolichostachyum M.G. Gilbert & N.H. Xia Accepted M TRO
Piper dolichostylum R. Callejas P. & Betancur Accepted M TRO
Piper dolichotrichum Yunck. Accepted M WCSP (in review)
Piper dombeyanum (Miq.) C. DC. Accepted M TRO
Piper dominantinervium Chaveer. & Mokkamul Unresolved L WCSP (in review)
Piper domingense C.DC. Synonym M WCSP (in review)
Piper dominicanum C.DC. Unresolved L WCSP (in review)
Piper donnell-smithii C.DC. Synonym M WCSP (in review)
Piper dotanum Trel. Accepted M WCSP (in review)
Piper dryadum C. DC. Accepted M TRO
Piper duartei E.F.Guim. & Carv.-Silva Unresolved L WCSP (in review)
Piper dubium A.Dietr. Unresolved L WCSP (in review)
Piper dubium Miq. Unresolved L WCSP (in review)
Piper duchassaingii C. DC. Synonym M TRO
Piper ducis Trel. Synonym M TRO
Piper duckei C. DC. Accepted M TRO
Piper duckii C.DC. Unresolved L WCSP (in review)
Piper duidaense Trel. Synonym M WCSP (in review)
Piper duidaense var. eciliatum Trel. & Yunck. Synonym L WCSP (in review)
Piper dukei Yunck. Accepted M TRO
Piper dulce Trel. Accepted M TRO
Piper dumeticola C.DC. Synonym M WCSP (in review)
Piper dumeticola var. panamense C. DC. Synonym L TRO
Piper dumetorum C. DC. Synonym M TRO
Piper dumiformans C.DC. Unresolved L WCSP (in review)
Piper dumosum Rudge Accepted L TRO
Piper dunlapi Trel. Unresolved L WCSP (in review)
Piper dunlapii Trel. Synonym M TRO
Piper dunstervilleorum Steyerm. Accepted M WCSP (in review)
Piper dupasquieri C.DC. Unresolved L WCSP (in review)
Piper durilignum C. DC. Accepted M TRO
Piper durilimbum C.DC. Unresolved L WCSP (in review)
Piper durirameum C. DC. Synonym M TRO
Piper durvilleanum Trel. Accepted M TRO
Piper dussii C.DC. Unresolved L WCSP (in review)
Piper dussii f. scabridum (DC.) Stehlé Unresolved L TRO
Piper dussii var. scabridum DC. Synonym L TRO
Piper ecallosum Trel. Accepted M TRO
Piper echeverrianum Trel. Synonym M WCSP (in review)
Piper echinocaule Yunck. Accepted M TRO
Piper echinovarium Yunck. Unresolved L WCSP (in review)
Piper ecuadorense Sodiro Accepted M TRO
Piper edurum Trel. Accepted M TRO
Piper edwallii Yunck. Accepted M TRO
Piper egense C.DC. Unresolved L WCSP (in review)
Piper eggersii C.DC. Unresolved L WCSP (in review)
Piper eglandulosum Trel. Unresolved L WCSP (in review)
Piper ejuncidum Trel. Synonym M WCSP (in review)
Piper el-bancoanum Trel. & Yunck. Accepted M WCSP (in review)
Piper el-caranyanum Trel. & Yunck. Accepted M TRO
Piper el-metanum Trel. & Yunck. Synonym M TRO
Piper el-muletonum C. DC. ex Schröd. Synonym M TRO
Piper el-paramoense Yunck. Accepted M WCSP (in review)
Piper elasmophyllum Trel. Synonym M WCSP (in review)
Piper elatostema Hallier f. Unresolved L WCSP (in review)
Piper elbertii C.DC. Unresolved L WCSP (in review)
Piper eldonense Killip Unresolved L TRO
Piper eldoradense Trel. Unresolved L WCSP (in review)
Piper ellipticibaccum C.DC. Unresolved L WCSP (in review)
Piper ellipticifolium Yunck. Accepted M TRO
Piper elliptico-oblongifolium Trel. Synonym M TRO
Piper ellipticolanceolatum (C. DC.) Trel. Synonym M TRO
Piper ellipticum Lam. Synonym M TRO
Piper elmeri Merr. Unresolved L WCSP (in review)
Piper elmuletonum C.DC. Unresolved L WCSP (in review)
Piper elongatifolium Trel. Synonym M TRO
Piper elongatum Vahl Synonym M WCSP (in review)
Piper elongatum (Kunth) Poir. [Illegitimate] Synonym M WCSP (in review)
Piper elongatum var. brachyarthrum Trel. Synonym L WCSP (in review)
Piper elongatum var. cordulatum (C.DC.) C.DC. Synonym L WCSP (in review)
Piper elongatum var. elongatum Synonym L TRO
Piper elongatum var. laevifolium (C. DC.) Trel. Synonym L TRO
Piper elongatum var. ossanum (C. DC.) C. DC. Synonym L TRO
Piper elongatum var. pampayacusum Trel. Synonym L TRO
Piper elongatum var. salviaefolium (Miq.) Trel. Unresolved L TRO
Piper emancipationis Trel. Unresolved L WCSP (in review)
Piper emarginatum (Ruiz & Pav.) Vahl Synonym M WCSP (in review)
Piper emarginellum Sw. ex Wikstr. Synonym M WCSP (in review)
Piper emeiense Y.Q. Tseng Synonym L TRO
Piper emirnense Baker Synonym M TRO
Piper emmerichianum Yunck. Accepted M WCSP (in review)
Piper emollitum Trel. Synonym M WCSP (in review)
Piper emygdioi Yunck. Accepted M WCSP (in review)
Piper enckea C. DC. Accepted M TRO
Piper enckeaespicum (Trel. & Yunck.) R. Callejas P. Accepted M TRO
Piper endlicherianum Trel. Accepted M TRO
Piper enenyasense Trel. Accepted M TRO
Piper enganyanum Trel. & Yunck. Accepted M TRO
Piper ensifolium Quisumb. Unresolved L WCSP (in review)
Piper entradense Trel. & Yunck. Accepted M TRO
Piper eocenicum Trel. Unresolved L WCSP (in review)
Piper epigynium C. DC. Accepted M TRO
Piper epilosipes Trel. Synonym M WCSP (in review)
Piper epilosipes var. heterophyllum Trel. Synonym L WCSP (in review)
Piper epunctatum Trel. Accepted M TRO
Piper epunctulatum C. DC. Synonym M TRO
Piper erectamentum C.DC. Synonym M WCSP (in review)
Piper erecticaule C.DC. Unresolved L WCSP (in review)
Piper erectipilum Yunck. Accepted M TRO
Piper erectispicum C.DC. Unresolved L WCSP (in review)
Piper erectum Lam. ex Trel. Unresolved L WCSP (in review)
Piper erectum C.DC. Unresolved L WCSP (in review)
Piper eriocladum Sodiro Accepted M TRO
Piper eriopodon (Miq.) C.DC. Accepted M WCSP (in review)
Piper erubescentispica Trel. Accepted M TRO
Piper erythrostachyum C.DC. Unresolved L WCSP (in review)
Piper erythroxyloides R.E.Schult. & García-Barr. Unresolved L WCSP (in review)
Piper escaleranum C. DC. Accepted M TRO
Piper escasuense Trel. Synonym M TRO
Piper escuadranum Trel. Synonym M TRO
Piper esculentum Farw. Unresolved L WCSP (in review)
Piper esmeraldanum Trel. Synonym M WCSP (in review)
Piper espejuelanum C. DC. Synonym M TRO
Piper esperancanum Yunck. Accepted M TRO
Piper esquivelanum Trel. Synonym M TRO
Piper estrellense C.DC. Unresolved L WCSP (in review)
Piper estrellense var. pilosius (Miq.) C. DC. Unresolved L TRO
Piper eucalyptifolium Rudge Accepted L TRO
Piper eucalyptiphyllum C.DC. Accepted M WCSP (in review)
Piper eucalyptolimbum C.DC. Unresolved L WCSP (in review)
Piper eucalyptophyllum C.DC. [Spelling variant] Synonym M WCSP (in review)
Piper eupodum C.DC. Unresolved L WCSP (in review)
Piper euryphyllum C. DC. Synonym M TRO
Piper eustylum Diels Accepted M TRO
Piper evasum Trel. Synonym M TRO
Piper evingeri Yunck. Accepted M TRO
Piper evonymifolium Kunth Unresolved L WCSP (in review)
Piper evulsipilosum Trel. Synonym M WCSP (in review)
Piper ewanii Yunck. Accepted M TRO
Piper exactum Trel. & Standl. Accepted M TRO
Piper exasperatum Vahl Unresolved L WCSP (in review)
Piper excavatum Ruiz & Pav. Accepted M TRO
Piper excelsum G.Forst. Unresolved L WCSP (in review)
Piper excelsum var. psittacorum (Endl.) C. DC. Unresolved L TRO
Piper excessum Trel. Accepted M TRO
Piper excultum Trel. Synonym M TRO
Piper exigens Trel. Synonym M WCSP (in review)
Piper exigens var. subovatum Trel. Synonym L WCSP (in review)
Piper exiguicaule Yunck. Accepted M WCSP (in review)
Piper exiguispicum Trel. Synonym M WCSP (in review)
Piper exiguum Blume Synonym M TRO
Piper eximium Kunth Synonym M WCSP (in review)
Piper expolitum Trel. Accepted M TRO
Piper exsectum Mart. Unresolved L WCSP (in review)
Piper exserens (Miq.) C.DC. Synonym M WCSP (in review)
Piper exserens var. mirafloresanum C. DC. Synonym L TRO
Piper exserens var. tocotanum C.DC. Synonym L WCSP (in review)
Piper exserrens C. DC. Unresolved L TRO
Piper extensum Roem. & Schult. Synonym M WCSP (in review)
Piper externum Trel. Accepted M TRO
Piper factum Trel. Accepted M TRO
Piper fadyenii C.DC. Unresolved L WCSP (in review)
Piper faecatum Trel. Accepted M TRO
Piper fagerlindii Yunck. Synonym M TRO
Piper fagifolium Trel. Accepted M TRO
Piper fagopyricarpum Trel. Synonym M TRO
Piper falanense Trel. & Yunck. Accepted M TRO
Piper falcatum A. Dietr. Synonym M TRO
Piper falcifolium Trel. Synonym L WCSP (in review)
Piper falcigerum Trel. Synonym M TRO
Piper falcispicum Yunck. Accepted M TRO
Piper falconeri C.DC. Unresolved L WCSP (in review)
Piper falculispicum Trel. & Yunck. Accepted M TRO
Piper fallax Vahl Unresolved L WCSP (in review)
Piper fallenii A.H. Gentry Accepted M TRO
Piper fallens Trel. Accepted M WCSP (in review)
Piper famechonii Heckel ex C.DC. Unresolved L WCSP (in review)
Piper fanshawei Yunck. Accepted M TRO
Piper faroense Yunck. Accepted M TRO
Piper fasciculare Rudge Synonym M TRO
Piper fasciculatum Ruiz & Pav. Unresolved L WCSP (in review)
Piper fastiditum Trel. & Yunck. Accepted M TRO
Piper fatoanum C.DC. Synonym M WCSP (in review)
Piper faviculiferum Trel. Synonym M WCSP (in review)
Piper febrifugum C.DC. Unresolved L WCSP (in review)
Piper fendlerianum C.DC. Synonym M WCSP (in review)
Piper fenianum Trel. Unresolved L WCSP (in review)
Piper fenixii C.DC. Unresolved L WCSP (in review)
Piper fernandezianum Bertero ex Steud. Unresolved L WCSP (in review)
Piper ferreyrae Yunck. Accepted M TRO
Piper ferriei C.DC. Unresolved L WCSP (in review)
Piper ferruginispicum Trel. Synonym M TRO
Piper figlinum Trel. Synonym M TRO
Piper filiforme Sw. Synonym M WCSP (in review)
Piper filipedunculum C.DC. Unresolved L WCSP (in review)
Piper filipes C.DC. Unresolved L WCSP (in review)
Piper filistilum C. DC. Accepted M TRO
Piper filistilum var. obovatum Sodiro Synonym L TRO
Piper fimbriulatum C.DC. Accepted M WCSP (in review)
Piper finlaysonianum Wall. Unresolved L WCSP (in review)
Piper firmifolium Trel. Synonym M WCSP (in review)
Piper firmolimbum C.DC. Unresolved L WCSP (in review)
Piper firmum (Miq.) C. DC. Accepted M TRO
Piper fischerianum C.DC. Unresolved L WCSP (in review)
Piper fistulosum C. DC. Synonym M TRO
Piper flabellinerve C. DC. Synonym M TRO
Piper flagellare Kunth Synonym M WCSP (in review)
Piper flagellicuspe Trel. & Yunck. Accepted M TRO
Piper flagelliforme Yamam. Synonym M TRO
Piper flavescens (C.DC.) Trel. Synonym M WCSP (in review)
Piper flavibaccum C.DC. Unresolved L WCSP (in review)
Piper flavicans C. DC. Accepted M TRO
Piper flavicans var. flavicans Synonym L TRO
Piper flavidum C. DC. Accepted M TRO
Piper flaviflorum C. DC. Accepted M TRO
Piper flavifructum Trel. Unresolved L WCSP (in review)
Piper flavimarginatum C.DC. Unresolved L WCSP (in review)
Piper flaviramum C. DC. Synonym M TRO
Piper flaviramum var. obscurum Trel. Synonym L TRO
Piper flavispicum C.DC. Unresolved L WCSP (in review)
Piper flavoviride C.DC. Accepted M WCSP (in review)
Piper flexicaule C.DC. Unresolved L WCSP (in review)
Piper flexuosum J.Jacq. [Illegitimate] Synonym M WCSP (in review)
Piper flexuosum Rudge Synonym M TRO
Piper flongatum Vahl Accepted M TRO
Piper florencianum Trel. & Yunck. Synonym M TRO
Piper fluminense C.DC. Synonym M WCSP (in review)
Piper fluvii-initii Trel. Synonym M TRO
Piper fockei Trel. & Yunck. Accepted M TRO
Piper foetidum Noronha Unresolved L WCSP (in review)
Piper foliiflorum (Ruiz & Pav.) Vahl Synonym M TRO
Piper foliosum (Kunth) Poir. Synonym M TRO
Piper fontanesianum Heynh. Unresolved L WCSP (in review)
Piper fonteboanum Yunck. Accepted M TRO
Piper fontinale Roem. & Schult. Unresolved L WCSP (in review)
Piper fontium Trel. Unresolved L WCSP (in review)
Piper foreroi A.H.Gentry Unresolved L WCSP (in review)
Piper formici-tolerans Trel. Synonym M WCSP (in review)
Piper formosum (Miq.) C. DC. Accepted L TRO
Piper forstenii C.DC. Unresolved L WCSP (in review)
Piper fortalezanum Trel. Accepted M TRO
Piper fortunaense Tebbs Accepted M WCSP (in review)
Piper fortunyoanum Trel. Accepted M TRO
Piper fosbergii Trel. Synonym M WCSP (in review)
Piper foveolatum Kunth ex C.DC. Accepted M WCSP (in review)
Piper fragile Benth. Accepted M WCSP (in review)
Piper fragiliforme C.DC. Unresolved L WCSP (in review)
Piper fragrans Trel. Unresolved L WCSP (in review)
Piper fraguanum Trel. Synonym M WCSP (in review)
Piper fraguanum var. viride Trel. Synonym L WCSP (in review)
Piper franciscanum Trel. Accepted M TRO
Piper francoae M.A. Jaram. & Callejas Unresolved L TRO
Piper francovilleanum C.DC. Accepted M WCSP (in review)
Piper fraseri C. DC. Synonym L TRO
Piper freirifolium Hochst. ex A.Rich. Unresolved L WCSP (in review)
Piper fresnoense Trel. & Yunck. Accepted M TRO
Piper friedrichsthalii C.DC. Accepted M WCSP (in review)
Piper frijolesanum Trel. Unresolved L TRO
Piper frijolesanum var. grandifolium Trel. Synonym L TRO
Piper frioense Standl. & Steyerm. Synonym M WCSP (in review)
Piper froesii Yunck. Accepted M TRO
Piper frostii Trel. ex Standl. Unresolved L WCSP (in review)
Piper frustratum Boerl. Unresolved L WCSP (in review)
Piper frutescens C. DC. Synonym M TRO
Piper fruticosum Steud. Unresolved L WCSP (in review)
Piper fuertesii C.DC. Unresolved L WCSP (in review)
Piper fulgentifolium Yunck. Accepted M TRO
Piper fulgidum Yunck. Accepted M TRO
Piper fuligineum Kunth Accepted L TRO
Piper fuligineum var. laevifolium C. DC. Synonym L TRO
Piper fuliginosum Sodiro Accepted M TRO
Piper fulvescens C.DC. Synonym M WCSP (in review)
Piper fulvescens var. geraense C. DC. Synonym L TRO
Piper fulvescens var. subglabrum C.DC. Synonym L WCSP (in review)
Piper fulvescenticaule Trel. Accepted M TRO
Piper fulvirameum C.DC. Unresolved L WCSP (in review)
Piper funckii C.DC. Synonym M WCSP (in review)
Piper fundacionense Steyerm. Accepted M WCSP (in review)
Piper fungiforme Spokes Unresolved L WCSP (in review)
Piper furcatipilosum Yunck. Synonym M WCSP (in review)
Piper furcatum D.Dietr. Unresolved L WCSP (in review)
Piper furiae Trel. Unresolved L WCSP (in review)
Piper fusagasuganum Trel. & Yunck. Accepted M TRO
Piper fuscescens C. DC. Synonym M TRO
Piper fuscescentirameum C.DC. Unresolved L WCSP (in review)
Piper fuscescentispicum C.DC. Unresolved L WCSP (in review)
Piper fuscinervium Quisumb. Unresolved L WCSP (in review)
Piper fuscispicum Trel. Accepted M TRO
Piper fuscobracteatum Trel. Synonym M WCSP (in review)
Piper fuscogranulatum Trel. Synonym M TRO
Piper fuscum C.DC. Unresolved L WCSP (in review)
Piper futokadsura Siebold Synonym M WCSP (in review)
Piper futuri Trel. & Yunck. Accepted M TRO
Piper gabrielianum (Miq.) C. DC. Accepted L TRO
Piper galeatum (Miq.) C. DC. Accepted M TRO
Piper galeottianum M. Martens & Galeotti Accepted M TRO
Piper galicianum Steyerm. Accepted M WCSP (in review)
Piper galioides (Kunth) Poir. Synonym M WCSP (in review)
Piper gallatlyi C.DC. Unresolved L WCSP (in review)
Piper gamblei C.DC. Unresolved L WCSP (in review)
Piper gamboanum (C. DC.) C. DC. Synonym M TRO
Piper gamboanum var. yapense Trel. Synonym L TRO
Piper gammiei C.DC. Unresolved L WCSP (in review)
Piper garagaranum C. DC. Accepted M TRO
Piper gardnerii C. DC. Unresolved L TRO
Piper gatunense Trel. Synonym M TRO
Piper gatunense var. cocleanum Trel. Synonym L TRO
Piper gatunense var. latum Trel. Synonym L TRO
Piper gaudichaudianum (Kunth) Kunth ex Steud. Accepted M WCSP (in review)
Piper gaudichaudianum Kunth Unresolved L TRO
Piper gaudichaudianum f. argentina C. DC. Synonym L TRO
Piper gaudichaudianum var. argentinum C. DC. Synonym L TRO
Piper gaumeri Trel. Accepted M TRO
Piper gegarvum C.DC. Unresolved L WCSP (in review)
Piper gelalae C.DC. Unresolved L WCSP (in review)
Piper gemellum Willd. ex Link Unresolved L WCSP (in review)
Piper generalense Trel. Synonym M WCSP (in review)
Piper geniculatum Sw. Synonym L WCSP (in review)
Piper geniculatum var. latifolium C.DC. Synonym L WCSP (in review)
Piper geniculatum var. longepetiolatum C. DC. Synonym L TRO
Piper geniculatum f. puberulum C. DC. Synonym L TRO
Piper geniculatum var. scandens Trel. & Yunck. Synonym L TRO
Piper geniculatum var. stamineum (Miq.) C. DC. Synonym L TRO
Piper gentlei Trel. Synonym M WCSP (in review)
Piper gentryi Steyerm. Accepted M WCSP (in review)
Piper genuflexum Trel. Synonym M WCSP (in review)
Piper georginum Trel. & Standl. Accepted M TRO
Piper gibbiflorum C.DC. Unresolved L WCSP (in review)
Piper gibbifolium C.DC. Unresolved L WCSP (in review)
Piper gibbilimbum C.DC. Unresolved L WCSP (in review)
Piper gibbosum C.DC. Accepted M WCSP (in review)
Piper gibbsiae C.DC. Unresolved L WCSP (in review)
Piper gibsonii C.DC. Unresolved L WCSP (in review)
Piper gigantifolium C.DC. Synonym M WCSP (in review)
Piper gigas Trel. Synonym M WCSP (in review)
Piper gilvescens Trel. Accepted M TRO
Piper gilvibaccum Trel. Accepted M TRO
Piper giordanoi E.F.Guim. & D.Monteiro Accepted M WCSP (in review)
Piper glabellum Sw. Synonym M WCSP (in review)
Piper glaberrimicaule Trel. Synonym M TRO
Piper glaberrimum C.DC. Unresolved L WCSP (in review)
Piper glabramentum C.DC. Unresolved L WCSP (in review)
Piper glabratum (Kunth) Steud. Accepted M WCSP (in review)
Piper glabratum Kunth Synonym M TRO
Piper glabrescens (Miq.) C.DC. Accepted M WCSP (in review)
Piper glabrescens var. caparonum (C. DC.) Yunck. Accepted L TRO
Piper glabrescens var. glabrescens Synonym L TRO
Piper glabrescens var. venezuelense (C.DC.) Trel. & Yunck. Accepted L WCSP (in review)
Piper glabribaccum Trel. Accepted M TRO
Piper glabribracteum Yunck. Accepted M TRO
Piper glabricaule C. DC. Synonym M TRO
Piper glabrifolium C.DC. Synonym M WCSP (in review)
Piper glabrilimbum C.DC. Synonym L WCSP (in review)
Piper glabrirameum C. DC. Synonym M TRO
Piper glabrirhache C.DC. Unresolved L WCSP (in review)
Piper glabrispica C.DC. Unresolved L WCSP (in review)
Piper glabrius Trel. Accepted M TRO
Piper glabrum Mill. Accepted M TRO
Piper glanduligerum C.DC. Accepted M WCSP (in review)
Piper glanduligerum var. subcoriaceum C. DC. Synonym L TRO
Piper glandulosissimum Yunck. Accepted M TRO
Piper glandulosum Opiz Unresolved L WCSP (in review)
Piper glaucescens Jacq. Accepted M TRO
Piper glaziovii C.DC. Unresolved L WCSP (in review)
Piper gleasonii Yunck. Synonym L TRO
Piper globosum C.DC. [Illegitimate] Synonym L WCSP (in review)
Piper globulantherum C.DC. Unresolved L WCSP (in review)
Piper globulistigmum C.DC. Unresolved L WCSP (in review)
Piper glyphicum Hoffmanns. ex Kunth Unresolved L WCSP (in review)
Piper godetii C.DC. Unresolved L WCSP (in review)
Piper goeldii C. DC. Accepted M TRO
Piper goergeri Trel. Unresolved L WCSP (in review)
Piper goesii Yunck. Accepted M TRO
Piper gonagricum Trel. Synonym M WCSP (in review)
Piper gonocarpum Trel. Accepted M TRO
Piper gorgonae-insulae Trel. & Yunck. Synonym M TRO
Piper gorgonillense Trel. & Yunck. Accepted M TRO
Piper goudotii C. DC. Synonym M TRO
Piper gracile Ruiz & Pav. Accepted M TRO
Piper gracilipedunculum Trel. Synonym M WCSP (in review)
Piper gracilipes C.DC. Unresolved L WCSP (in review)
Piper gracilirameum C.DC. Unresolved L WCSP (in review)
Piper graciliramosum Yunck. Accepted M TRO
Piper gracilispicum C.DC. Unresolved L WCSP (in review)
Piper gracillimum Trel. Synonym L WCSP (in review)
Piper gracillimum var. dactoense Trel. Synonym L WCSP (in review)
Piper graeffei Warb. Unresolved L WCSP (in review)
Piper grahami Trel. Synonym M TRO
Piper granatense D. Dietr. Synonym M TRO
Piper grande Vahl Accepted M WCSP (in review)
Piper grande var. puberulentum Yunck. Synonym L TRO
Piper grandifolium Kunth [Illegitimate] Synonym M WCSP (in review)
Piper grandilimbum C.DC. Synonym M WCSP (in review)
Piper grandipedunculum C.DC. Unresolved L WCSP (in review)
Piper grandispicum C.DC. Unresolved L WCSP (in review)
Piper grantii Yunck. Accepted M TRO
Piper granulatum Trel. Synonym M WCSP (in review)
Piper granuligerum Trel. Accepted M TRO
Piper granulosum Ruiz & Pav. Accepted M TRO
Piper gratum Trel. Accepted M TRO
Piper gratum var. gratum Synonym L TRO
Piper graveolens C.DC. Unresolved L WCSP (in review)
Piper griffithii C.DC. Unresolved L WCSP (in review)
Piper grisebachii C. DC. Unresolved L TRO
Piper griseo-reticulatum Trel. Unresolved L TRO
Piper griseocaule Trel. Accepted M TRO
Piper griseolimbum Trel. & Yunck. Accepted M TRO
Piper griseopubens Trel. Synonym M WCSP (in review)
Piper griseopubens var. revocabile Trel. Synonym L TRO
Piper griseovenosum Trel. Synonym M TRO
Piper griseum C. DC. Accepted M TRO
Piper guabinachanum Trel. Unresolved L WCSP (in review)
Piper guacimonum (C. DC.) Trel. Accepted M TRO
Piper guadaloupense C.DC. Unresolved L WCSP (in review)
Piper guadratilimbum Trel. Unresolved L TRO
Piper guahamense C.DC. Unresolved L WCSP (in review)
Piper gualeanum C. DC. Accepted M TRO
Piper guanacostense C. DC. Accepted M TRO
Piper guanahacabibense Borhidi Unresolved L WCSP (in review)
Piper guanaianum C. DC. Synonym M TRO
Piper guapense Yunck. Accepted M TRO
Piper guaremalesanum Trel. & Yunck. Synonym M WCSP (in review)
Piper guatopoense Yunck. Accepted M WCSP (in review)
Piper guavanum C.DC. Unresolved L WCSP (in review)
Piper guayasanum C. DC. Accepted M TRO
Piper guayranum C. DC. Synonym M TRO
Piper guayranum var. humilior (C. DC.) Trel. & Yunck. Synonym L TRO
Piper guazacapanense Trel. & Standl. Accepted M TRO
Piper guedesii C. DC. Synonym L TRO
Piper guianense (Klotzsch) C.DC. Accepted M WCSP (in review)
Piper guigual Buch.-Ham. ex D. Don Synonym M TRO
Piper guildingianum Spreng. Unresolved L WCSP (in review)
Piper guineense Schumach. & Thonn. Accepted M WCSP (in review)
Piper gurupanum Yunck. Accepted M TRO
Piper gutierrezii Yunck. Accepted M TRO
Piper gymnocladum C.DC. Unresolved L WCSP (in review)
Piper gymnophyllum C.DC. Unresolved L WCSP (in review)
Piper gymnostachyum C.DC. Unresolved L WCSP (in review)
Piper haenkeanum D.Dietr. Unresolved L WCSP (in review)
Piper haenkeanum Opiz Unresolved L WCSP (in review)
Piper hahnii C.DC. Unresolved L WCSP (in review)
Piper hainana K.Schum. Unresolved L WCSP (in review)
Piper hainanense Hemsl. Accepted M TRO
Piper halconense C.DC. Unresolved L WCSP (in review)
Piper halesiaefolium Kunth Unresolved L TRO
Piper halesiifolium Kunth ex C.DC. Unresolved L WCSP (in review)
Piper hallieri C.DC. Unresolved L WCSP (in review)
Piper hamiltonii C.DC. Unresolved L WCSP (in review)
Piper hancei Maxim. Accepted M TRO
Piper hanckelii Trel. Synonym M WCSP (in review)
Piper hapnium Buch.-Ham. Unresolved L WCSP (in review)
Piper haridasanii Gajurel, Rethy & Y.Kumar Unresolved L WCSP (in review)
Piper harlingii Yunck. Accepted M TRO
Piper harmandii C.DC. Unresolved L WCSP (in review)
Piper harrisii C.DC. Unresolved L WCSP (in review)
Piper hartii C.DC. Unresolved L WCSP (in review)
Piper hartwegianum (Benth.) C. DC. Accepted L TRO
Piper harveyanum Domin Unresolved L WCSP (in review)
Piper hassleri C.DC. Accepted M WCSP (in review)
Piper hastularum Yunck. Synonym M TRO
Piper hastularum var. longipetiolatum Trel. & Yunck. Synonym L TRO
Piper hatschbachii Yunck. Accepted M WCSP (in review)
Piper haughtii Trel. & Yunck. Accepted M TRO
Piper havilandii C.DC. Unresolved L WCSP (in review)
Piper haworthianum Schult. Unresolved L WCSP (in review)
Piper hayesii Trel. Synonym M WCSP (in review)
Piper hayneanum C. DC. Accepted M TRO
Piper hebecarpum C.DC. Unresolved L WCSP (in review)
Piper hebetifolium W.C.Burger Accepted M WCSP (in review)
Piper hederaceum (Miq.) C. DC. Accepted L TRO
Piper heimii C. DC. Accepted M TRO
Piper hemionitidifolium D.Dietr. Unresolved L WCSP (in review)
Piper hemmendorffii C. DC. Accepted M TRO
Piper henryci C. DC. Synonym L TRO
Piper henshenii C.DC. Synonym L WCSP (in review)
Piper heptandrum (Miq.) C. DC. Accepted L TRO
Piper heptandrum var. heptandrum Synonym L TRO
Piper heptaneurum Trel. Synonym M TRO
Piper heraldi Trel. Synonym M TRO
Piper heraldi var. amplius Trel. Synonym L TRO
Piper heraldii Trel. Unresolved L WCSP (in review)
Piper heraldii var. cocleanum Trel. Synonym L WCSP (in review)
Piper herbaceum Miq. Synonym M TRO
Piper hermannii Trel. & Yunck. Accepted M WCSP (in review)
Piper hermes Trel. & Standl. Accepted M WCSP (in review)
Piper hermosanum Yunck. Accepted M TRO
Piper hernandiifolium Vahl Synonym M WCSP (in review)
Piper herrerae Trel. Accepted M TRO
Piper herzogii C. DC. Synonym M TRO
Piper heterobracteum Steyerm. Accepted M WCSP (in review)
Piper heterocarpum Trel. Accepted M TRO
Piper heteromallum Pers. Synonym M TRO
Piper heterophlebium Trel. Synonym M WCSP (in review)
Piper heterophyllum Ruiz & Pav. Accepted M TRO
Piper heterostachyon (A. Dietr.) D. Dietr. Synonym M TRO
Piper heterotrichum C. DC. Accepted M TRO
Piper hexandrum C. DC. Accepted M TRO
Piper heydei C. DC. Accepted M TRO
Piper hians Trel. Synonym M TRO
Piper hieronymi C. DC. Accepted M TRO
Piper hieronymi var. hieronymi Synonym L TRO
Piper hilarianum (Miq.) C. DC. Synonym L TRO
Piper hillianum C. DC. Accepted M TRO
Piper hippocrepiforme Steyerm. Accepted M WCSP (in review)
Piper hirsutissimum D.Dietr. Unresolved L WCSP (in review)
Piper hirsutum Sw. Synonym M WCSP (in review)
Piper hirsutum var. asperiusculum (Kunth) C. DC. Synonym L TRO
Piper hirsutum var. barclayanum (Miq.) C. DC. Synonym L TRO
Piper hirsutum var. carpinterae C. DC. Synonym L TRO
Piper hirsutum var. laevius C.DC. Synonym L WCSP (in review)
Piper hirsutum var. longipilosum C.DC. Synonym L WCSP (in review)
Piper hirsutum var. magnifolium C. DC. Synonym L TRO
Piper hirsutum var. parvifolium C. DC. Synonym L TRO
Piper hirsutum var. tonduzii C.DC. Synonym L WCSP (in review)
Piper hirtellipetiolum C. DC. Accepted M TRO
Piper hirtellipetiolum var. harveyanum (Trel.) Yunck. Accepted L TRO
Piper hirtellipetiolum var. hirtellipetiolum Synonym L TRO
Piper hirtellipetiolum var. tapianum (Trel.) Yunck. Accepted L TRO
Piper hirtellum C.DC. Unresolved L WCSP (in review)
Piper hirtilimbum Trel. & Yunck. Accepted M TRO
Piper hirtirache C. DC. Unresolved L TRO
Piper hirtovarium C.DC. Unresolved L WCSP (in review)
Piper hirtulum (C. Presl) C. DC. Accepted L TRO
Piper hispaniolae Trel. Unresolved L WCSP (in review)
Piper hispidinervum C.DC. Synonym M WCSP (in review)
Piper hispidiramum C.DC. Unresolved L WCSP (in review)
Piper hispidiseptum Trel. Synonym M TRO
Piper hispidulum Sw. Synonym M WCSP (in review)
Piper hispidum Sw. Accepted M WCSP (in review)
Piper hispidum var. ellipticifolium Yunck. Synonym L TRO
Piper hispidum var. gamboanum C. DC. Synonym L TRO
Piper hispidum var. hispidum Synonym L TRO
Piper hispidum f. hispidum Synonym L TRO
Piper hispidum var. lanceolatum Trel. & Yunck. Synonym L TRO
Piper hispidum f. lanceolatum Steyerm. Accepted L TRO
Piper hispidum var. magnifolium C. DC. Synonym L TRO
Piper hispidum var. obliquum Trel. & Yunck. Synonym L TRO
Piper hispidum var. trachydermum (Trel.) Yunck. Synonym L WCSP (in review)
Piper hochiense Y.Q. Tseng Accepted M TRO
Piper hodgei Yunck. Accepted M TRO
Piper hoehnei Yunck. Accepted M TRO
Piper hoffmanseggianum Schult. Unresolved L TRO
Piper hohenackeri C. DC. Synonym L TRO
Piper holdridgeianum W.C.Burger Accepted M WCSP (in review)
Piper holguinianum Trel. Synonym M TRO
Piper hollrungii K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper holtii Trel. & Yunck. Accepted M WCSP (in review)
Piper holtonii C.DC. Accepted M WCSP (in review)
Piper holtonii var. cundinamarcanum Trel. & Yunck. [Unplaced] Unresolved L WCSP (in review)
Piper holtonii var. parvispicum Yunck. Synonym L TRO
Piper hondonadense Trel. & Yunck. Accepted M TRO
Piper hongkongense C. DC. Accepted L TRO
Piper hooglandii (I. Hutton & P.S. Green) M.A. Jaram. Accepted M TRO
Piper hookeri Miq. Unresolved L WCSP (in review)
Piper hookerianum (Miq.) C. DC. Accepted L TRO
Piper hosei C.DC. Unresolved L WCSP (in review)
Piper hosokawae Fosberg Unresolved L WCSP (in review)
Piper hostmannianum (Miq.) C.DC. Accepted M WCSP (in review)
Piper hostmannianum var. berbicense (Miq.) C. DC. Synonym L TRO
Piper hostmannianum var. glabrirameum Trel. & Yunck. Synonym L WCSP (in review)
Piper hostmannianum var. ramiflorum C. DC. Synonym L TRO
Piper huacachianum Trel. Accepted M TRO
Piper huacapistanum Trel. Accepted M TRO
Piper huallaganum Trel. Accepted M TRO
Piper huantanum Trel. Accepted M TRO
Piper huantanum var. huantanum Synonym L TRO
Piper huanucanum Trel. Accepted M TRO
Piper huberi C.DC. Unresolved L WCSP (in review)
Piper huegelianum (Miq.) Miq. Accepted L TRO
Piper huigranum Trel. & Yunck. Accepted M TRO
Piper huilanum C. DC. Accepted M TRO
Piper humaytanum Yunck. Accepted M TRO
Piper humblotii C. DC. Synonym M TRO
Piper humile Vahl [Illegitimate] Synonym M WCSP (in review)
Piper humile Mill. Synonym M TRO
Piper humillimum C. DC. Accepted M TRO
Piper humistratum Görts & K.U. Kramer Accepted M TRO
Piper humoense Trel. Synonym M WCSP (in review)
Piper humorigaudens Trel. Synonym M WCSP (in review)
Piper hyalinum Wall. Unresolved L WCSP (in review)
Piper hydrangeifolium Kunth Unresolved L WCSP (in review)
Piper hydrocotylifolium M. Martens & Galeotti Synonym M TRO
Piper hydrolapathum C. DC. Accepted M TRO
Piper hylebates C. DC. Accepted M TRO
Piper hylophilum C. DC. Accepted M TRO
Piper hymenophyllum (Miq.) Wight Unresolved L WCSP (in review)
Piper hymenopodum Sodiro Accepted M TRO
Piper hypoglaucum Miq. Unresolved L WCSP (in review)
Piper hypoleucum Sodiro Accepted M TRO
Piper ibaguense Trel. Unresolved L WCSP (in review)
Piper ichangense C. DC. Synonym L TRO
Piper ictum Trel. Synonym M TRO
Piper ignacioanum Trel. & Yunck. Synonym M TRO
Piper ilheusense Yunck. Accepted M TRO
Piper illautum Trel. Accepted M TRO
Piper illudens Trel. Unresolved L WCSP (in review)
Piper imberbe Trel. & Standl. Accepted M WCSP (in review)
Piper immite Trel. Accepted M TRO
Piper immutatum Trel. Accepted M TRO
Piper imparipes Trel. Synonym M WCSP (in review)
Piper imperiale (Miq.) C.DC. Accepted M WCSP (in review)
Piper imperspicuibracteum Trel. Synonym M WCSP (in review)
Piper impube Trel. Synonym M TRO
Piper impunctatum Link Synonym L TRO
Piper inaequale C. DC. Accepted M TRO
Piper inaequalifolium (Ruiz & Pav.) Vahl Synonym M WCSP (in review)
Piper inauspicatum Trel. Accepted M TRO
Piper incanum Haw. Synonym M TRO
Piper incisum Rich. ex C.DC. Unresolved L WCSP (in review)
Piper incitum Trel. Synonym M TRO
Piper inclemens Trel. & Yunck. Accepted M TRO
Piper incomptum Trel. Accepted M TRO
Piper inconsumptum Trel. Synonym M WCSP (in review)
Piper incurvum Sieber ex Schult. Synonym M TRO
Piper indecorum Kunth Accepted M TRO
Piper indianonum Trel. Accepted M TRO
Piper indiciflexum Trel. Accepted M TRO
Piper indicum Garsault [Invalid] Synonym M WCSP (in review)
Piper indignum Trel. Synonym M WCSP (in review)
Piper inebrians Bertero ex Miq. Unresolved L WCSP (in review)
Piper inebrians Royle Unresolved L WCSP (in review)
Piper infidele Trel. & Yunck. Synonym M TRO
Piper infossibaccatum A. Huang Accepted M TRO
Piper infossum Y.Q. Tseng Accepted M TRO
Piper infossum var. infossum Synonym L TRO
Piper infraluteum Trel. Accepted M TRO
Piper inhorrescens Trel. Synonym M WCSP (in review)
Piper injucundum Trel. Synonym M WCSP (in review)
Piper injucundum var. praecalvinervium Trel. Synonym L TRO
Piper injucundum var. praepubinervium Trel. Synonym L TRO
Piper insectifugum C.DC. ex Seem. Accepted M WCSP (in review)
Piper insigne (Kunth) Steud. Unresolved L WCSP (in review)
Piper insigne (Kunth) C.DC. Unresolved L WCSP (in review)
Piper insignifolium C. DC. Synonym L TRO
Piper insignilaminum Trel. & Yunck. Accepted M TRO
Piper insignilimbum C.DC. Unresolved L WCSP (in review)
Piper insipiens Trel. & Yunck. Synonym L TRO
Piper insolens Trel. Synonym M TRO
Piper instabilipes Trel. Accepted M TRO
Piper insulare C.DC. Unresolved L WCSP (in review)
Piper insulicola Trel. Synonym M TRO
Piper interitum Trel. Accepted M TRO
Piper internibaccum C.DC. Unresolved L WCSP (in review)
Piper internovarium C.DC. Unresolved L WCSP (in review)
Piper interruptum Opiz Accepted M WCSP (in review)
Piper interruptum var. multinervum C. DC. Synonym L TRO
Piper intersitum f. porcecitense Trel. Synonym L TRO
Piper intonsum Trel. Accepted M TRO
Piper inversum C.DC. Unresolved L WCSP (in review)
Piper iquitosense Trel. Accepted M TRO
Piper irazuanum C.DC. Accepted M WCSP (in review)
Piper irazuanum var. suborbiculatum Trel. Synonym L TRO
Piper irrasum Trel. Synonym M TRO
Piper isernii Trel. Synonym M TRO
Piper isopleurum C.DC. Unresolved L WCSP (in review)
Piper itacolumianum C.DC. Unresolved L WCSP (in review)
Piper itatiaianum C.DC. Accepted M WCSP (in review)
Piper itayanum Trel. Accepted M TRO
Piper itayanum var. itayanum Synonym L TRO
Piper ivonense Yunck. Accepted M TRO
Piper ixocubvainense Standl. & Steyerm. Accepted M TRO
Piper jaboncillanum Trel. & Yunck. Accepted M TRO
Piper jaborandii Vell. Synonym M WCSP (in review)
Piper jacquemontianum Kunth Accepted M WCSP (in review)
Piper jacquinianum Schult. Synonym M WCSP (in review)
Piper jacquinii C.DC. Synonym M WCSP (in review)
Piper jactatum Trel. & Standl. Synonym M WCSP (in review)
Piper jaculifolium Trel. Synonym M TRO
Piper jalapense M.Martens & Galeotti Synonym M WCSP (in review)
Piper jaliscanum S.Watson Unresolved L WCSP (in review)
Piper jamaicense C.DC. Unresolved L WCSP (in review)
Piper jamaoanum Trel. Unresolved L WCSP (in review)
Piper jamesoni C. DC. Synonym M TRO
Piper janeiroense C.DC. Unresolved L WCSP (in review)
Piper japurense (Miq.) C. DC. Accepted L TRO
Piper japvonum C.DC. Unresolved L WCSP (in review)
Piper jauaense Steyerm. Accepted M WCSP (in review)
Piper javanicum C.DC. Unresolved L WCSP (in review)
Piper javariense Yunck. Accepted M TRO
Piper javitense Kunth Accepted M WCSP (in review)
Piper jayeri C.DC. Unresolved L WCSP (in review)
Piper jenkinsii C.DC. Unresolved L WCSP (in review)
Piper jericoense Trel. & Yunck. Synonym M TRO
Piper johnstonii C.DC. Synonym M WCSP (in review)
Piper jubatum Trel. Synonym M TRO
Piper jubimarginatum Yunck. Accepted M TRO
Piper julianii Callejas Accepted M WCSP (in review)
Piper juliflorum Nees & Mart. Unresolved L WCSP (in review)
Piper jumayense Trel. & Standl. Accepted M TRO
Piper jussiaeanum Kunth Unresolved L WCSP (in review)
Piper kadsura (Choisy) Ohwi Accepted M WCSP (in review)
Piper kandavuense A.C.Sm. Unresolved L WCSP (in review)
Piper kanehiranum Trel. Accepted M TRO
Piper kantetulense Trel. Unresolved L WCSP (in review)
Piper kantetulense var. gentlei Trel. Synonym L TRO
Piper kappleri C. DC. Accepted M TRO
Piper kapruanum C.DC. Unresolved L WCSP (in review)
Piper karok Blume Unresolved L WCSP (in review)
Piper karwinskianum (Kunth) Kunth ex C. DC. Accepted M TRO
Piper kawakamii Hayata Accepted M TRO
Piper kegelianum (Miq.) C.DC. Accepted M WCSP (in review)
Piper kegelii C. DC. Accepted M TRO
Piper kerberi C.DC. Unresolved L WCSP (in review)
Piper kewense C.DC. Unresolved L WCSP (in review)
Piper keyanum C.DC. Unresolved L WCSP (in review)
Piper khasianum C.DC. Unresolved L WCSP (in review)
Piper kietanum C.DC. Synonym M WCSP (in review)
Piper killipii Trel. Synonym M WCSP (in review)
Piper killipii var. calderanum Trel. Synonym L WCSP (in review)
Piper kimpitirikianum Trel. Accepted M TRO
Piper kleinii Yunck. Accepted M WCSP (in review)
Piper klossii Ridl. Unresolved L WCSP (in review)
Piper klotzschianum (Kunth) C. DC. Accepted M TRO
Piper klugianum Trel. Accepted M TRO
Piper klugii Yunck. Accepted M TRO
Piper koepperi Trel. Synonym M WCSP (in review)
Piper konkintoense Trel. Synonym M WCSP (in review)
Piper koordersii C.DC. ex Koord. Unresolved L WCSP (in review)
Piper koordersii C.DC. Unresolved L WCSP (in review)
Piper korthalsii Miq. Unresolved L WCSP (in review)
Piper kotanum C.DC. Unresolved L WCSP (in review)
Piper kotoense Yamam. Synonym M TRO
Piper kraense Ridl. Unresolved L WCSP (in review)
Piper kreangense C.DC. Unresolved L WCSP (in review)
Piper krintjingense C.DC. Unresolved L WCSP (in review)
Piper krukoffii Yunck. Accepted M TRO
Piper kuhlmannii Yunck. Accepted M TRO
Piper kunstleri C.DC. Unresolved L WCSP (in review)
Piper kunthianum Steud. Unresolved L WCSP (in review)
Piper kunthii (Miq.) C. DC. Accepted L TRO
Piper kuntzei C. DC. Synonym M TRO
Piper kurzii Ridl. Unresolved L WCSP (in review)
Piper kurzii C.DC. Unresolved L WCSP (in review)
Piper kusaiense Hosok. Unresolved L WCSP (in review)
Piper kwashoense Hayata Accepted M TRO
Piper la-doradense Trel. & Yunck. Accepted M TRO
Piper labeculatum Trel. Synonym M TRO
Piper labillardieri C.DC. Unresolved L WCSP (in review)
Piper laceratibracteum Trel. Synonym M WCSP (in review)
Piper lacunosum Kunth Accepted M WCSP (in review)
Piper ladrillense Trel. Synonym M WCSP (in review)
Piper laedans Trel. Synonym M WCSP (in review)
Piper laeteviride Ekman ex Trel. Unresolved L WCSP (in review)
Piper laetispicum C. DC. Accepted M TRO
Piper laetum (Kunth) C. DC. Accepted M TRO
Piper laeve Vahl Unresolved L WCSP (in review)
Piper laevibracteum Trel. Synonym L WCSP (in review)
Piper laevicarpum Yunck. Accepted M WCSP (in review)
Piper laevifolium Blume Synonym M TRO
Piper laevigatum Kunth Accepted M TRO
Piper laevilimbum C. DC. Synonym M TRO
Piper laevirameum C.DC. Unresolved L WCSP (in review)
Piper laevius (C.DC.) Trel. Synonym M WCSP (in review)
Piper lagenaebaccum Trel. Accepted M TRO
Piper lagenibaccum Trel. Unresolved L WCSP (in review)
Piper lageniovarium C.DC. Unresolved L WCSP (in review)
Piper lagoaense C.DC. Accepted M WCSP (in review)
Piper laguna-cochanum Trel. & Yunck. Accepted M WCSP (in review)
Piper lagunaense Trel. & Yunck. Accepted M TRO
Piper lainatakanum C.DC. Unresolved L WCSP (in review)
Piper lamasense Trel. Accepted M TRO
Piper lambeauense C.DC. Unresolved L WCSP (in review)
Piper lanatibracteum Trel. Synonym M WCSP (in review)
Piper lanatum Roxb. Unresolved L WCSP (in review)
Piper lanatum Wight ex Miq. Unresolved L WCSP (in review)
Piper lanceatum A.Dietr. Unresolved L WCSP (in review)
Piper lanceifolium Kunth Accepted M WCSP (in review)
Piper lanceifolium var. acutiusculum C. DC. Synonym L TRO
Piper lanceifolium var. latifolium Sodiro Synonym L TRO
Piper lanceifolium var. plicatum Sodiro Synonym L TRO
Piper lanceolatum Ruiz & Pav. Accepted M TRO
Piper lanceolatum var. latifolium C. DC. Synonym L TRO
Piper lanceolatum var. mucronatum C. DC. Synonym L TRO
Piper lanceolatum var. tricuspe (Miq.) C. DC. Synonym L TRO
Piper lancetillanum Trel. Synonym M WCSP (in review)
Piper lanciferum Standl. & Steyerm. Accepted M TRO
Piper lancifolium Schott ex C.DC. Unresolved L WCSP (in review)
Piper lancifolium Ham. Unresolved L WCSP (in review)
Piper lancilimbum Yunck. Accepted M TRO
Piper landakanum C.DC. Unresolved L WCSP (in review)
Piper langlassei C.DC. Unresolved L WCSP (in review)
Piper langsdorffianum C. DC. Synonym M TRO
Piper langsdorfii Schrank Unresolved L WCSP (in review)
Piper lanosibracteum Trel. Synonym M WCSP (in review)
Piper lanosicaule Trel. Accepted M TRO
Piper lanuginosum C.DC. Synonym M WCSP (in review)
Piper laosanum C.DC. Unresolved L WCSP (in review)
Piper lapathifolium (Kunth) Steud. Accepted M TRO
Piper lappaceum (Benn.) C.DC. Synonym M WCSP (in review)
Piper larutanum C.DC. Unresolved L WCSP (in review)
Piper late-ovatum Trel. Accepted M TRO
Piper lateoblongum S.Moore Unresolved L WCSP (in review)
Piper laterifissum Trel. Synonym M WCSP (in review)
Piper lateripilosum Yunck. Accepted M WCSP (in review)
Piper latibracteum C. DC. Accepted M TRO
Piper latifolium L. f. Accepted M TRO
Piper latilimbum C.DC. Unresolved L WCSP (in review)
Piper latum Kunth Synonym M WCSP (in review)
Piper laurentii De Wild. Unresolved L WCSP (in review)
Piper laurifolium Mill. Unresolved L WCSP (in review)
Piper laurifolium Kunth Unresolved L WCSP (in review)
Piper laurinum Roem. & Schult. Accepted M TRO
Piper lauterbachii C.DC. Unresolved L WCSP (in review)
Piper lawrancei Trel. & Yunck. Accepted M TRO
Piper laxiflorum Poir. Unresolved L WCSP (in review)
Piper laxirameum C.DC. Unresolved L WCSP (in review)
Piper laxispicum Trel. Synonym M TRO
Piper laxispicum var. latifolium C. DC. ex Trel. Synonym L TRO
Piper laxivenum C.DC. Unresolved L WCSP (in review)
Piper laxum Vahl Unresolved L WCSP (in review)
Piper lechlerianum C. DC. Accepted M TRO
Piper ledebourii C.DC. Unresolved L WCSP (in review)
Piper ledermannii C.DC. Unresolved L WCSP (in review)
Piper ledezmae Trel. & Yunck. Synonym L TRO
Piper lehmannianum (Miq.) C. DC. Accepted M TRO
Piper leiophyllum C. DC. Synonym L TRO
Piper lemaense Yunck. Accepted M WCSP (in review)
Piper lenormandianum C. DC. Synonym M TRO
Piper lentaginoides Kunth Unresolved L WCSP (in review)
Piper lenticellosum C. DC. Synonym M TRO
Piper leonense C.DC. Unresolved L WCSP (in review)
Piper lepidotum D.Parodi Unresolved L WCSP (in review)
Piper leprieurii (Miq.) Pulle Synonym M WCSP (in review)
Piper leptocladum C. DC. Accepted M TRO
Piper leptonema Hook.f. Unresolved L WCSP (in review)
Piper leptoneuron C.DC. Synonym M WCSP (in review)
Piper leptophyllum C.DC. Synonym M WCSP (in review)
Piper leptostachyon Nutt. Synonym M TRO
Piper leptostachyum Wall. Unresolved L WCSP (in review)
Piper leptostachyum Willd. ex Kunth Unresolved L WCSP (in review)
Piper leptostachyum A.Rich. Unresolved L WCSP (in review)
Piper leptostachyum Wall. ex Miq. Unresolved L WCSP (in review)
Piper leptostilum C.DC. Unresolved L WCSP (in review)
Piper lepturum Kunth Accepted M TRO
Piper lepturum var. angustifolium (C. DC.) Yunck. Accepted L TRO
Piper lessertianum C.DC. Unresolved L WCSP (in review)
Piper leticianum C. DC. Accepted M TRO
Piper leticianum var. leticianum Synonym L TRO
Piper leucanthum C.DC. Unresolved L WCSP (in review)
Piper leucofustum Trel. Synonym M TRO
Piper leucophaeocaule Trel. Accepted M TRO
Piper leucophaeum Trel. Accepted M TRO
Piper leucophlebium Trel. Synonym M WCSP (in review)
Piper leucophyllum (Miq.) C. DC. Accepted L TRO
Piper leucostachyum Trel. & Yunck. Accepted M TRO
Piper levilimbum Trel. Synonym M WCSP (in review)
Piper leyteanum C.DC. Unresolved L WCSP (in review)
Piper lhotzkyanum Kunth Accepted M TRO
Piper liebmannii C. DC. Accepted M TRO
Piper liesneri Steyerm. Accepted M WCSP (in review)
Piper ligatispicum Trel. Synonym M TRO
Piper limae Yunck. Accepted M WCSP (in review)
Piper limosum Yunck. Accepted M WCSP (in review)
Piper lincolnense Trel. Synonym M TRO
Piper lindbergii C. DC. Accepted M TRO
Piper lindenianum C.DC. Unresolved L WCSP (in review)
Piper lindenii (Miq.) C. DC. Accepted M TRO
Piper linearifolium C. DC. Synonym M TRO
Piper lineatipilosum Yunck. Accepted M TRO
Piper lineatipilum C.DC. Unresolved L WCSP (in review)
Piper lineativillosum Trel. & Yunck. Accepted M TRO
Piper lineatum Ruiz & Pav. Accepted M TRO
Piper lineatum var. hirtipetiolatum Trel. Synonym L TRO
Piper lineatum var. leucolepidum Trel. Synonym L TRO
Piper lineatum var. lineatum Synonym L TRO
Piper lineolatifolium Trel. & Yunck. Accepted M TRO
Piper lingshuiense Y.Q. Tseng Accepted M TRO
Piper linguifolium Ham. Unresolved L WCSP (in review)
Piper linguliforme Steyerm. Accepted M WCSP (in review)
Piper linkii Miq. Unresolved L WCSP (in review)
Piper linkii A.Dietr. Unresolved L WCSP (in review)
Piper lippoldii Saralegui Unresolved L WCSP (in review)
Piper liratinerve Trel. Synonym M WCSP (in review)
Piper listeri C.DC. Unresolved L WCSP (in review)
Piper littlei Yunck. Unresolved L WCSP (in review)
Piper littorale C. DC. Accepted M TRO
Piper lividum C.DC. Unresolved L WCSP (in review)
Piper llatanum Trel. Accepted M TRO
Piper loefgrenii Yunck. Accepted M WCSP (in review)
Piper loheri C.DC. Unresolved L WCSP (in review)
Piper lolot C. DC. Synonym M TRO
Piper lonchites Schult. Unresolved L WCSP (in review)
Piper lonchites Wall. Unresolved L WCSP (in review)
Piper longamentum C.DC. Unresolved L WCSP (in review)
Piper longeacuminatum Trel. Accepted M TRO
Piper longegerminatum Trel. Synonym M TRO
Piper longepetiolatum (C. DC.) Trel. Accepted M TRO
Piper longepilosum C. DC. Accepted M TRO
Piper longestamineum Trel. Accepted M TRO
Piper longestylosum C. DC. Accepted M TRO
Piper longevillosum Trel. Synonym M TRO
Piper longiappendiculatum Steyerm. Accepted M WCSP (in review)
Piper longiauriculatum Yunck. Unresolved L WCSP (in review)
Piper longibracteum C.DC. Unresolved L WCSP (in review)
Piper longicaudatum Trel. & Yunck. Accepted M TRO
Piper longicaule C.DC. Unresolved L WCSP (in review)
Piper longichaetum Yunck. Accepted M TRO
Piper longicuspe Willd. ex Kunth Unresolved L WCSP (in review)
Piper longifilamentosum Trel. Synonym M TRO
Piper longifilamentum C.DC. Unresolved L WCSP (in review)
Piper longiflorum Willd. ex D.Dietr. Unresolved L WCSP (in review)
Piper longifolium Ruiz & Pav. Accepted M TRO
Piper longifolium var. pilosum C. DC. Synonym L TRO
Piper longilimbum C.DC. Unresolved L WCSP (in review)
Piper longimucronatum Yunck. Unresolved L WCSP (in review)
Piper longiovarium C. DC. Unresolved L TRO
Piper longipedicellatum Quisumb. Unresolved L WCSP (in review)
Piper longipedunculatum D.Dietr. Unresolved L WCSP (in review)
Piper longipedunculatum C.DC. Unresolved L WCSP (in review)
Piper longipes C. DC. Accepted M TRO
Piper longipilum C.DC. Unresolved L WCSP (in review)
Piper longispicum C.DC. Accepted M WCSP (in review)
Piper longispicum var. boconoense (Trel. & Yunck.) Steyerm. Synonym L TRO
Piper longispicum var. glabratum (Yunck.) Steyerm. Accepted L WCSP (in review)
Piper longispicum var. longispicum Synonym L TRO
Piper longistigmum C.DC. Unresolved L WCSP (in review)
Piper longistipulum C. DC. Synonym M TRO
Piper longivaginans C.DC. Unresolved L WCSP (in review)
Piper longivillosum Trel. & Yunck. Accepted M TRO
Piper longum L. Accepted M WCSP (in review)
Piper lorentzii Trel. Synonym M TRO
Piper loretoanum Trel. Accepted M TRO
Piper losoense Trel. & Yunck. Accepted M TRO
Piper lowong Blume Unresolved L WCSP (in review)
Piper loxense (Kunth) Poir. Synonym M WCSP (in review)
Piper lucaeanum Kunth Accepted M TRO
Piper lucaeanum var. magnifolium C.DC. Synonym L WCSP (in review)
Piper lucbanense C.DC. Unresolved L WCSP (in review)
Piper lucigaudens C. DC. Accepted M TRO
Piper lucigaudens var. alleni (Trel.) Yunck. Accepted L TRO
Piper lunare (Ham.) D.Dietr. Synonym M WCSP (in review)
Piper lundellianum Trel. Synonym L TRO
Piper lundellii Trel. Synonym L TRO
Piper lundii C.DC. Accepted M WCSP (in review)
Piper lunulibracteatum C. DC. Accepted M TRO
Piper luridispicum Trel. Synonym M WCSP (in review)
Piper luschnathianum (Kunth) Kunth ex B.D.Jacks. Synonym M WCSP (in review)
Piper luschnathianum Kunth Synonym L TRO
Piper luteobaccum Trel. Unresolved L WCSP (in review)
Piper lutescens C.DC. Unresolved L WCSP (in review)
Piper luxii C.DC. ex Donn.Sm. Synonym M WCSP (in review)
Piper luzonense C.DC. Unresolved L WCSP (in review)
Piper maagnasanum C.DC. Unresolved L WCSP (in review)
Piper macapaense Yunck. Accepted M TRO
Piper macbrideanum Trel. Accepted M TRO
Piper macedoi Yunck. Accepted M TRO
Piper macerispicum Trel. & Yunck. Accepted M TRO
Piper macgillivrayi C.DC. ex Seem. Unresolved L WCSP (in review)
Piper macgillivrayi var. glabrum C.DC. Synonym L WCSP (in review)
Piper macgregorii C.DC. Unresolved L WCSP (in review)
Piper machadoanum C.DC. Synonym M WCSP (in review)
Piper machadoense C.DC. Unresolved L WCSP (in review)
Piper machucanum Trel. Synonym M TRO
Piper machupicchuense Trel. Accepted M TRO
Piper macintoshii Trel. & Stehlé Unresolved L WCSP (in review)
Piper maclurei Merr. Synonym M TRO
Piper macrocarpum C.DC. Unresolved L WCSP (in review)
Piper macrophyllum Kunth [Illegitimate] Synonym L WCSP (in review)
Piper macrophyllum Sw. Synonym L TRO
Piper macropiper Pennant Accepted M WCSP (in review)
Piper macropodum C. DC. Accepted M TRO
Piper macropunctatum Yunck. Synonym M TRO
Piper macrorhizum Poir. Unresolved L WCSP (in review)
Piper macrorhynchon (Miq.) C. DC. Accepted L TRO
Piper macrostachyon Vahl Synonym M WCSP (in review)
Piper macrostachyum (C. Presl) C. DC. Accepted L TRO
Piper macrostylum C.DC. Unresolved L WCSP (in review)
Piper macrotrichum C. DC. Accepted M TRO
Piper macrourum Kunth Synonym M TRO
Piper maculaphyllum Chaveer. & Sudmoon Synonym M WCSP (in review)
Piper maculatum Blume Unresolved L WCSP (in review)
Piper maculosum L. Synonym M WCSP (in review)
Piper madagascariense C.DC. Unresolved L WCSP (in review)
Piper madagascariensis (Miq.) C. DC. Accepted M TRO
Piper madeiranum Yunck. Accepted M TRO
Piper madidum Y.Q. Tseng Synonym M TRO
Piper maestranum Trel. Synonym M TRO
Piper magallanesanum C.DC. Unresolved L WCSP (in review)
Piper magicum Reinw. ex Miq. Unresolved L WCSP (in review)
Piper magnantherum C.DC. Accepted M WCSP (in review)
Piper magnibaccum C.DC. Unresolved L WCSP (in review)
Piper magnificum Gentil Synonym M TRO
Piper magnificum Trel. Accepted M TRO
Piper magnifolium (C.DC.) Trel. Synonym M WCSP (in review)
Piper magnilimbum C. DC. Synonym M TRO
Piper magnipedunculum C.DC. Unresolved L WCSP (in review)
Piper magnispicum C.DC. Unresolved L WCSP (in review)
Piper magnoliifolium Jacq. Synonym M WCSP (in review)
Piper maguirei Yunck. Synonym M TRO
Piper maingayi Hook.f. Unresolved L WCSP (in review)
Piper majusculum Blume Accepted M WCSP (in review)
Piper makruense C.DC. Unresolved L WCSP (in review)
Piper malabarense C.DC. Unresolved L WCSP (in review)
Piper malaccense C.DC. Unresolved L WCSP (in review)
Piper malacocarpum K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper malacophyllum (C.Presl) C.DC. Accepted M WCSP (in review)
Piper malaganum C.DC. Unresolved L WCSP (in review)
Piper malamiri Blume Unresolved L WCSP (in review)
Piper malamiris L. Unresolved L WCSP (in review)
Piper malamiris Roxb. Unresolved L WCSP (in review)
Piper malanganum Trel. Unresolved L WCSP (in review)
Piper malarayatense C.DC. Unresolved L WCSP (in review)
Piper malifolium Trel. Accepted M TRO
Piper malifolium var. malifolium Synonym L TRO
Piper malindangense C.DC. Unresolved L WCSP (in review)
Piper malmoris Wall. Unresolved L WCSP (in review)
Piper malpasoense Tebbs Unresolved L WCSP (in review)
Piper malpasoensis Tebbs Accepted M TRO
Piper mamorense Yunck. Accepted M TRO
Piper manabinum C. DC. Accepted M TRO
Piper mananthum C.Wright Unresolved L WCSP (in review)
Piper manausense Yunck. Accepted M TRO
Piper mandinganum Trel. & Yunck. Synonym M TRO
Piper mandonii C. DC. Synonym M TRO
Piper manillanum Miq. Unresolved L WCSP (in review)
Piper mannii C.DC. Unresolved L WCSP (in review)
Piper mansericheanum Trel. Accepted M TRO
Piper manzanillanum C.DC. Unresolved L WCSP (in review)
Piper mapirense C. DC. Accepted M TRO
Piper mapirense var. magnifolium C. DC. Synonym L TRO
Piper maraccasense Trel. Unresolved L WCSP (in review)
Piper maranyonense Trel. Accepted M TRO
Piper maravalanum Trel. Unresolved L WCSP (in review)
Piper marcescentispicum Trel. Synonym L TRO
Piper marcoanum C.DC. Unresolved L WCSP (in review)
Piper marequitense C. DC. Accepted M TRO
Piper margaretae Trel. Synonym M WCSP (in review)
Piper margaritanum C. DC. Synonym M TRO
Piper margaritatum Trel. Accepted M TRO
Piper margaritiferum Bertero ex Steud. Unresolved L WCSP (in review)
Piper marginatibaccum Trel. ex Standl. Synonym M WCSP (in review)
Piper marginatihaccum Trel. Unresolved L WCSP (in review)
Piper marginatum Jacq. Accepted M WCSP (in review)
Piper marginatum var. anisatum (Kunth) C.DC. Synonym L WCSP (in review)
Piper marginatum var. catalpifolium (Kunth) C. DC. Synonym L TRO
Piper marginatum f. catalpifolium (Kunth) Steyerm. Accepted L TRO
Piper marginatum var. marginatum Synonym L TRO
Piper marginatum f. marginatum Synonym L TRO
Piper marginatum var. niceforoi (Trel. & Yunck.) Steyerm. Accepted L WCSP (in review)
Piper marianum Opiz Synonym M TRO
Piper maritimum Blume ex C.DC. Unresolved L WCSP (in review)
Piper marivelesanum C.DC. Unresolved L WCSP (in review)
Piper marmoreum Trel. Synonym M TRO
Piper marowinianum C. DC. Synonym M TRO
Piper marowynense C. DC. Synonym M TRO
Piper marsupiatum Trel. & Yunck. Synonym M TRO
Piper marsupiiferum Trel. Accepted M TRO
Piper martensianum C.DC. Accepted M WCSP (in review)
Piper martianum Kunth Unresolved L WCSP (in review)
Piper martinense Trel. Accepted M TRO
Piper martinicense C.DC. Unresolved L WCSP (in review)
Piper martinii C. DC. Synonym L TRO
Piper marturetense Trel. & Yunck. Accepted M WCSP (in review)
Piper mas Trel. Unresolved L WCSP (in review)
Piper mascarena C. DC. Unresolved L TRO
Piper mascarense D.Dietr. Unresolved L WCSP (in review)
Piper masiseanum Trel. Synonym M TRO
Piper massiei C.DC. Unresolved L WCSP (in review)
Piper mastersianum C. DC. Accepted M TRO
Piper matangaum C.DC. Unresolved L WCSP (in review)
Piper maternale Trel. Synonym M TRO
Piper mathewsii C. DC. Accepted M TRO
Piper matinanum C.DC. Synonym M WCSP (in review)
Piper matthewii Dunn Synonym M TRO
Piper matudae Lundell Accepted M TRO
Piper mauritianum Schult. Unresolved L WCSP (in review)
Piper maxonii C.DC. Accepted M WCSP (in review)
Piper maxonii var. varium (Trel.) Yunck. Synonym L TRO
Piper maxwellanum C.DC. Unresolved L WCSP (in review)
Piper mayanum Lundell Synonym M WCSP (in review)
Piper maynasianum C. DC. Synonym M TRO
Piper maypurense (Kunth) Poir. Synonym M WCSP (in review)
Piper mazamariense Yunck. Accepted M TRO
Piper mcvaughii Bornst. Accepted M TRO
Piper mearnsii C.DC. Unresolved L WCSP (in review)
Piper medinaense Yunck. Accepted M TRO
Piper medinillifolium Quisumb. Unresolved L WCSP (in review)
Piper mediocre C. DC. Accepted M TRO
Piper medium Jacq. Synonym L WCSP (in review)
Piper medium var. ceanothifolium (Kunth) Trel. & Yunck. Synonym L TRO
Piper medium var. perglabrum Yunck. Synonym L TRO
Piper meeboldii C.DC. Unresolved L WCSP (in review)
Piper megalophyllum C.DC. Synonym M WCSP (in review)
Piper megalophyllum var. connivens C. DC. Synonym L TRO
Piper mekongense C. DC. Synonym M TRO
Piper melanocarpum Ridl. Unresolved L WCSP (in review)
Piper melanocaulon Quisumb. Unresolved L WCSP (in review)
Piper melanocladum C. DC. Accepted M TRO
Piper melanopremnum Trel. & Ekman Unresolved L WCSP (in review)
Piper melanostachyum C.DC. Unresolved L WCSP (in review)
Piper melanostictum (Miq.) C. DC. Accepted L TRO
Piper melastomoides Schltdl. & Cham. Accepted M TRO
Piper melchior (Sykes) M.A. Jaram. Accepted M TRO
Piper melendezense Trel. Synonym M TRO
Piper mellibracteaum Trel. Accepted M TRO
Piper melula Trel. Unresolved L WCSP (in review)
Piper membranaceum C.DC. Unresolved L WCSP (in review)
Piper mendezense Yunck. Accepted M TRO
Piper meraense Trel. & Yunck. Synonym M TRO
Piper mercedense Trel. Accepted M TRO
Piper mercens Yunck. Accepted M TRO
Piper meritum Trel. Synonym M WCSP (in review)
Piper merrillii C.DC. Unresolved L WCSP (in review)
Piper merrittii C.DC. Unresolved L WCSP (in review)
Piper mertonii F.M.Bailey Unresolved L WCSP (in review)
Piper mestonii F.M.Bailey Unresolved L WCSP (in review)
Piper metallicum Hallier f. Unresolved L WCSP (in review)
Piper metanum Trel. & Yunck. Accepted M WCSP (in review)
Piper metapalcoensis C. DC. Accepted M TRO
Piper methysticum G.Forst. Accepted M WCSP (in review)
Piper methysticum var. wichmannii (C. DC.) Lebot Accepted L TRO
Piper mexiae Trel. & Yunck. Accepted M TRO
Piper mexicanum (Miq.) DC. Accepted L TRO
Piper michelianum C. DC. Accepted M TRO
Piper micoense Trel. Synonym M WCSP (in review)
Piper miconiifolium (Benth.) C. DC. Synonym L TRO
Piper micranthera C.DC. Synonym M WCSP (in review)
Piper micronesiacum Hosok. Unresolved L WCSP (in review)
Piper microphyllum (Kunth) Poir. Synonym M WCSP (in review)
Piper microstachyum Vahl Accepted M TRO
Piper microstigma (Miq.) C. DC. Accepted L TRO
Piper microtrichum C. DC. Accepted M TRO
Piper middlesexense Trel. Synonym M WCSP (in review)
Piper miersinum (Miq.) C. DC. Accepted L TRO
Piper miersinum var. balsapambae C. DC. Synonym L TRO
Piper miersinum var. magnifolium C. DC. Synonym L TRO
Piper miguel-conejoanum Trel. & Yunck. Accepted M TRO
Piper mikaniaefolium Trel. Accepted M TRO
Piper mikanianum (Kunth) Steud. Accepted M TRO
Piper mikanianum f. clausum Yunck. Synonym L TRO
Piper mikanianum var. mikanianum Synonym L TRO
Piper mikanianum var. pilosius C. DC. Accepted L TRO
Piper mikarianum Steud. Unresolved L WCSP (in review)
Piper mikii M.Hiroe Unresolved L WCSP (in review)
Piper milciadesii Trel. & Yunck. Synonym M TRO
Piper millegranum Yunck. Accepted M WCSP (in review)
Piper millepunctulatum Trel. & Yunck. Accepted M TRO
Piper milleri Roem. & Schult. Synonym M TRO
Piper millii C.DC. Unresolved L WCSP (in review)
Piper minahassae C.DC. ex Koord. Unresolved L WCSP (in review)
Piper minarum C.DC. Unresolved L WCSP (in review)
Piper minarum Standl. & Steyerm. Unresolved L WCSP (in review)
Piper minasarum Steyerm. Accepted M WCSP (in review)
Piper mindoense C. DC. Synonym M TRO
Piper miniatum (Miq.) Blume Accepted L TRO
Piper miniatum var. hirtellum (Miq.) C. DC. Accepted L TRO
Piper minus K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper minutantherum C. DC. Accepted M TRO
Piper minute-scabiosum Trel. Accepted M TRO
Piper minute-scabiosum var. arborescens Trel. Synonym L TRO
Piper minutipetiolum C.DC. Unresolved L WCSP (in review)
Piper minutispicum C. DC. Synonym M TRO
Piper minutistigmum C.DC. Unresolved L WCSP (in review)
Piper miquelianum C.DC. Accepted M WCSP (in review)
Piper miquelii C. DC. Synonym L TRO
Piper mirabile Trel. Synonym M TRO
Piper miradorense C.DC. Synonym M WCSP (in review)
Piper miramarense Trel. & Yunck. Synonym M TRO
Piper misantlense C. DC. Accepted M TRO
Piper mischocarpum Y.Q. Tseng Accepted M TRO
Piper mishuyacuense Trel. Accepted M TRO
Piper misionesanum C. DC. Synonym M TRO
Piper mite Ruiz & Pav. Accepted M TRO
Piper mitifolium Trel. Accepted M TRO
Piper mituense Trel. & Yunck. Accepted M TRO
Piper moccomocco Trel. Accepted M TRO
Piper moccomocco var. moccomocco Synonym L TRO
Piper mocoanum Trel. & Yunck. Accepted M TRO
Piper modestum (Miq.) C. DC. Accepted L TRO
Piper moense C. DC. Accepted M TRO
Piper mohomoho C. DC. Accepted M TRO
Piper molanoi Trel. & Yunck. Synonym M TRO
Piper molle (Kunth) Poir. Synonym M WCSP (in review)
Piper molleri C.DC. Unresolved L WCSP (in review)
Piper mollicomum (Kunth) Kunth ex Steud. Accepted M WCSP (in review)
Piper mollicomum Kunth Unresolved L TRO
Piper mollipilosum C. DC. Accepted M TRO
Piper mollipilum Yunck. Synonym M TRO
Piper mollissimum Blume Synonym M TRO
Piper molliusculum Sodiro Accepted M TRO
Piper moluccanum Spreng. Unresolved L WCSP (in review)
Piper mombachanum C.DC. Synonym M WCSP (in review)
Piper monagasense Yunck. Accepted M WCSP (in review)
Piper monostachion Vell. Unresolved L WCSP (in review)
Piper monostachyos Poir. Unresolved L WCSP (in review)
Piper monostachyum (Ruiz & Pav.) Vahl Synonym M TRO
Piper monostigmum C. DC. Accepted M TRO
Piper montanum C. DC. Accepted M TRO
Piper montealegreanum Yunck. Accepted M WCSP (in review)
Piper monteluctans Trel. Synonym M WCSP (in review)
Piper monteverdeanum C.DC. Unresolved L WCSP (in review)
Piper montium C.DC. Unresolved L WCSP (in review)
Piper montivagum Ridl. Unresolved L WCSP (in review)
Piper monurum Trel. & Yunck. Accepted M TRO
Piper monzonense C. DC. Accepted M TRO
Piper moraballianum Trel. Synonym M TRO
Piper morator Trel. Synonym M TRO
Piper moreletii C.DC. Unresolved L WCSP (in review)
Piper morelianum Yunck. Unresolved L WCSP (in review)
Piper morianum Trel. Unresolved L WCSP (in review)
Piper morilloi Steyerm. Accepted M WCSP (in review)
Piper morisonianum C.DC. Accepted M WCSP (in review)
Piper moritzianum (Miq.) C. DC. Accepted L TRO
Piper mornicola C.DC. Unresolved L WCSP (in review)
Piper mosaicum Steyerm. Accepted M WCSP (in review)
Piper moscopanense Yunck. Accepted M TRO
Piper mosenii C. DC. Accepted M TRO
Piper mourae Yunck. Unresolved L WCSP (in review)
Piper mourai Yunck. Accepted M TRO
Piper moyobambanum Trel. Accepted M TRO
Piper mucronatum Rich. ex C.DC. Unresolved L WCSP (in review)
Piper mucronulatum Blume Unresolved L WCSP (in review)
Piper muelleri C. DC. Accepted M TRO
Piper mullesua Buch.-Ham. ex D. Don Accepted M TRO
Piper multiforme Trel. & Yunck. Accepted M TRO
Piper multimammosum Trel. Accepted M TRO
Piper multimammosum var. multimammosum Synonym L TRO
Piper multinervium M.Martens & Galeotti Synonym M WCSP (in review)
Piper multinervium var. amplum Trel. Synonym L WCSP (in review)
Piper multinervium var. flavicans Trel. Synonym L WCSP (in review)
Piper multinervium var. hirsuticaule Trel. Synonym L WCSP (in review)
Piper multinervium var. kantelolense Trel. Synonym L TRO
Piper multinervium var. paralense Trel. Synonym L WCSP (in review)
Piper multinervium var. peracutum Trel. Synonym L WCSP (in review)
Piper multinervium var. productipes Trel. Synonym L WCSP (in review)
Piper multinervium var. protractifolium Trel. Synonym L WCSP (in review)
Piper multinervium var. puberulipedunculum Trel. Synonym L WCSP (in review)
Piper multinervium var. pubescenticaule Trel. Synonym L WCSP (in review)
Piper multinervium var. skutchii Trel. Synonym L TRO
Piper multinervium var. telanum Trel. Synonym L WCSP (in review)
Piper multinodum C. DC. Accepted M TRO
Piper multiplinervium C.DC. Accepted M WCSP (in review)
Piper multistigmum C.DC. Unresolved L WCSP (in review)
Piper multitudinis Trel. Accepted M TRO
Piper multitudinis var. latum Trel. Synonym L TRO
Piper muluense O.Schwartz Unresolved L WCSP (in review)
Piper munchanum C.DC. Accepted M WCSP (in review)
Piper munchanum var. magnifolium C. DC. Synonym L TRO
Piper mundum Trel. Accepted M TRO
Piper muneyporense C.DC. Unresolved L WCSP (in review)
Piper mungpooanum C.DC. Unresolved L WCSP (in review)
Piper munyanum Trel. Accepted M TRO
Piper muricatum Blume Unresolved L WCSP (in review)
Piper murinum Roem. & Schult. Synonym M TRO
Piper murrayanum C.DC. Unresolved L WCSP (in review)
Piper muscosum Schult. Unresolved L WCSP (in review)
Piper musteum Trel. Accepted M TRO
Piper mutabile C. DC. Accepted M TRO
Piper mutisii Trel. & Yunck. Synonym M TRO
Piper myosuroides Rudge Synonym M WCSP (in review)
Piper myosuros Willd. ex D.Dietr. Unresolved L WCSP (in review)
Piper myosurus Willd. Synonym M TRO
Piper myrmecophilum C.DC. Unresolved L WCSP (in review)
Piper myrtifolia Vahl Synonym M TRO
Piper mystaciferum Trel. Synonym M WCSP (in review)
Piper nagaense C.DC. Unresolved L WCSP (in review)
Piper nagelii C.DC. Unresolved L WCSP (in review)
Piper naiguatanum Yunck. Synonym M WCSP (in review)
Piper nanayanum Trel. Accepted M TRO
Piper nanegalense Trel. & Yunck. Accepted M TRO
Piper nanum C. DC. Synonym M TRO
Piper napalense Miq. Unresolved L TRO
Piper napo-pastazanum Trel. & Yunck. Accepted M TRO
Piper naranjoanum C.DC. Synonym M WCSP (in review)
Piper narinoense Yunck. Unresolved L WCSP (in review)
Piper nasutum Trel. Accepted M TRO
Piper neblinanum Yunck. Accepted M WCSP (in review)
Piper nebuligaudens Yunck. Accepted M TRO
Piper neesianum C. DC. Accepted M TRO
Piper neglectum Trel. Accepted M TRO
Piper negritosense Trel. Synonym M TRO
Piper negroense C. DC. Accepted M TRO
Piper nematanthera C. DC. Accepted M TRO
Piper nematanthera var. sagotii (C. DC.) Trel. & Yunck. Accepted L TRO
Piper nematostachyum (Link) Schult. Synonym M WCSP (in review)
Piper nemorale C.DC. Unresolved L WCSP (in review)
Piper nemorense C. DC. Accepted M TRO
Piper nemori-marginis Trel. Synonym M WCSP (in review)
Piper nemorosum Vahl Synonym M TRO
Piper nepalense Miq. Synonym M TRO
Piper nervosovenosum Blume Unresolved L WCSP (in review)
Piper nervosum C.DC. Unresolved L WCSP (in review)
Piper nervulosum C. DC. Accepted M TRO
Piper neurostachyum C.DC. Synonym M WCSP (in review)
Piper nhandi Rich. Unresolved L WCSP (in review)
Piper niceforoi Trel. & Yunck. Synonym M WCSP (in review)
Piper niceforoi var. glabricaule Yunck. Synonym L TRO
Piper nicoyanum C.DC. Synonym L WCSP (in review)
Piper nieblyanum C. DC. Synonym M TRO
Piper nigramentum C.DC. Unresolved L WCSP (in review)
Piper nigrantherum C.DC. Unresolved L WCSP (in review)
Piper nigrescens Miq. Unresolved L WCSP (in review)
Piper nigrescens Blume Unresolved L WCSP (in review)
Piper nigribaccum C. DC. Accepted M TRO
Piper nigricans Willd. ex Link Unresolved L WCSP (in review)
Piper nigricaule Trel. Synonym M WCSP (in review)
Piper nigriconnectivum C. DC. Accepted M TRO
Piper nigrinodum C. DC. Synonym M TRO
Piper nigrispicum C. DC. Accepted M TRO
Piper nigro-granulatum Trel. Synonym M TRO
Piper nigropunctatum C. DC. Accepted M TRO
Piper nigropunctatum var. franciscoanum C. DC. Synonym L TRO
Piper nigroramum C.DC. Unresolved L WCSP (in review)
Piper nigrovirens C.DC. Unresolved L WCSP (in review)
Piper nigrum L. Accepted M WCSP (in review)
Piper nigrum var. macrostachyum C. DC. Synonym L TRO
Piper nilghirianum C.DC. Unresolved L WCSP (in review)
Piper nirjulianum Gajurel, Rethy & Y.Kumar Unresolved L WCSP (in review)
Piper nitens Desf. Unresolved L WCSP (in review)
Piper niteroiense Yunck. Accepted M TRO
Piper nitidifolium C.DC. Synonym M WCSP (in review)
Piper nitidulifolium Trel. Synonym M TRO
Piper nitidulilaminum Trel. Unresolved L WCSP (in review)
Piper nitidulum Opiz Synonym L TRO
Piper nitidum Sw. Synonym L WCSP (in review)
Piper nobile C.DC. Accepted M WCSP (in review)
Piper nobile var. glabratum Yunck. Synonym L WCSP (in review)
Piper nodosum C.DC. Synonym M WCSP (in review)
Piper nodulosum Link Synonym L TRO
Piper nonconformans Trel. Synonym M WCSP (in review)
Piper nonretrorsum Trel. Unresolved L TRO
Piper nottirbanum Trel. ex Stehlé Unresolved L WCSP (in review)
Piper nottirhanum Trel. ex Stehlé Unresolved L WCSP (in review)
Piper novae-helvetiae Trel. Synonym M TRO
Piper novae-hispaniae C.DC. Unresolved L WCSP (in review)
Piper novae-hispaniae Colla Unresolved L WCSP (in review)
Piper novae-hollandiae Miq. Unresolved L WCSP (in review)
Piper noveninervium C.DC. Unresolved L WCSP (in review)
Piper novo-granatense C. DC. Accepted M TRO
Piper novo-guineense Warb. Unresolved L TRO
Piper novogalicianum Bornst. Accepted M TRO
Piper nubigaudens Trel. Synonym M WCSP (in review)
Piper nubigenum Kunth Accepted M WCSP (in review)
Piper nubigenum var. nubigenum Synonym L TRO
Piper nudibaccatum Y.Q. Tseng Accepted M TRO
Piper nudibracteatum C. DC. Synonym M TRO
Piper nudibracteatum var. micropuberulum Trel. & Yunck. Synonym L TRO
Piper nudibracteatum var. pubescens Trel. & Yunck. Synonym L TRO
Piper nudicaule C. DC. Synonym M TRO
Piper nudifolium C.DC. Accepted M WCSP (in review)
Piper nudilimbum C. DC. Accepted M TRO
Piper nudipedunculum C.DC. Unresolved L WCSP (in review)
Piper nudiramum C.DC. Unresolved L WCSP (in review)
Piper nudispicuum C.DC. Unresolved L WCSP (in review)
Piper nudum C. DC. Accepted M TRO
Piper nummularifolium Lam. & Willd. ex C.DC. Unresolved L WCSP (in review)
Piper nummularifolium Pohl ex Miq. Unresolved L WCSP (in review)
Piper nummulariifolium Sw. Synonym L WCSP (in review)
Piper nummularium Lam. Synonym M TRO
Piper nuncupatum Trel. Accepted M TRO
Piper nutans Opiz Synonym M TRO
Piper nyrtifolium Vahl Unresolved L WCSP (in review)
Piper oaxacanum C. DC. Accepted M TRO
Piper obaldianum C. DC. Synonym M TRO
Piper obatense O.Schwartz Unresolved L WCSP (in review)
Piper obcordatum Stokes Unresolved L WCSP (in review)
Piper obesispicum S.Moore Unresolved L WCSP (in review)
Piper obesum Vahl Accepted M TRO
Piper obidosanum C. DC. ex Huber Unresolved L TRO
Piper obiter-sericeum Trel. Synonym M WCSP (in review)
Piper oblanceolatum Trel. Synonym M TRO
Piper oblanceolatum var. fragilicaule Trel. Synonym L WCSP (in review)
Piper oblancifolium Yunck. Accepted M WCSP (in review)
Piper obliqueovatum Trel. Synonym M WCSP (in review)
Piper obliquum Balb. ex Kunth [Illegitimate] Synonym M WCSP (in review)
Piper obliquum Ruiz & Pav. Accepted M WCSP (in review)
Piper obliquum var. eximium (Kunth) C.DC. Synonym L WCSP (in review)
Piper obliquum var. puberulidrupum Yunck. Synonym L TRO
Piper oblitum Trel. Synonym M TRO
Piper oblongatifolium Trel. Accepted M TRO
Piper oblongatilimbum Trel. Accepted M TRO
Piper oblongatum Opiz Accepted M TRO
Piper oblongibaccum C.DC. Unresolved L WCSP (in review)
Piper oblongifolium (Klotzsch) C. DC. Accepted L TRO
Piper oblongilimbum C. DC. Synonym L TRO
Piper oblongum Kunth Accepted M WCSP (in review)
Piper obloniaefolium C. DC. Unresolved L TRO
Piper obovantherum C.DC. Unresolved L WCSP (in review)
Piper obovatibracteum C.DC. Unresolved L WCSP (in review)
Piper obovatifolium Trel. Accepted M TRO
Piper obovatilimbum C. DC. Synonym M TRO
Piper obovatum Vahl Accepted M TRO
Piper obovatum var. bolivianum C. DC. Synonym L TRO
Piper obrumbatum C. DC. Synonym M TRO
Piper obrutum Trel. & Yunck. Accepted M TRO
Piper obscurum C.DC. Unresolved L WCSP (in review)
Piper obsessum Trel. Synonym M WCSP (in review)
Piper obtusifolium L. Synonym M WCSP (in review)
Piper obtusilimbum C. DC. Accepted M TRO
Piper obtusissimum Miq. Unresolved L WCSP (in review)
Piper obtusistigmum C.DC. Unresolved L WCSP (in review)
Piper obtusum C.DC. Unresolved L WCSP (in review)
Piper obumbratifolium Trel. Synonym L TRO
Piper obumbratum (Miq.) C.DC. Synonym M WCSP (in review)
Piper obversum Vahl Unresolved L WCSP (in review)
Piper occultum Trel. Unresolved L WCSP (in review)
Piper ocoanum Trel. Unresolved L WCSP (in review)
Piper oculatiopicum Trel. Unresolved L TRO
Piper oculatispicum Trel. Accepted M TRO
Piper odoratum C.DC. Unresolved L WCSP (in review)
Piper oerstedii C. DC. Synonym M TRO
Piper offensum Trel. Accepted M TRO
Piper officinarum (Miq.) C. DC. Synonym L TRO
Piper okamotoi M.Hiroe Unresolved L WCSP (in review)
Piper oldhamii C.DC. Unresolved L WCSP (in review)
Piper olens C.DC. Unresolved L WCSP (in review)
Piper olfersianum Kunth Unresolved L WCSP (in review)
Piper olivaceum C. DC. Synonym L TRO
Piper ollantaitambanum Trel. Accepted M TRO
Piper omega Trel. Synonym M WCSP (in review)
Piper onerosum Trel. Synonym M WCSP (in review)
Piper onus Trel. Synonym M TRO
Piper ootacamundense C.DC. Unresolved L WCSP (in review)
Piper opacibracteum Trel. Synonym M WCSP (in review)
Piper opacilimbum C.DC. Unresolved L WCSP (in review)
Piper oparumaense Yunck. Synonym M WCSP (in review)
Piper operosum Trel. Synonym M TRO
Piper opinatum Trel. Synonym M WCSP (in review)
Piper opizianum (A. Dietr.) D. Dietr. Synonym M TRO
Piper opizianum Fuernr. Accepted M TRO
Piper opizii (Kunth) Steud. Accepted M TRO
Piper opodum Trel. Unresolved L TRO
Piper oppressum Trel. Synonym M WCSP (in review)
Piper oradendron Trel. & Standl. Accepted M TRO
Piper orbiculatum Poir. Unresolved L WCSP (in review)
Piper orbiculatum Spreng. Unresolved L WCSP (in review)
Piper orenocanum C.DC. Synonym M WCSP (in review)
Piper oreophilum Ridl. Unresolved L WCSP (in review)
Piper orizabanum C. DC. Accepted M TRO
Piper ornatispicum Trel. Synonym M WCSP (in review)
Piper ornatum N.E.Br. Unresolved L WCSP (in review)
Piper ornithorhynchum Trel. Accepted M TRO
Piper oroense Yunck. Accepted M TRO
Piper orosianum Trel. Synonym M WCSP (in review)
Piper orthostachyum Kunth Synonym L TRO
Piper ospinense Trel. & Yunck. Accepted M TRO
Piper ossanum (C. DC.) Trel. Synonym M TRO
Piper ostii Trel. Accepted M TRO
Piper otophorum C.DC. Accepted M WCSP (in review)
Piper otophyllum C.DC. Unresolved L WCSP (in review)
Piper otto-huberi Steyerm. Accepted M WCSP (in review)
Piper otto-huberi var. otto-huberi Synonym L TRO
Piper ottoniifolium C. DC. Accepted L TRO
Piper ottoniifolium var. frutescens Trel. & Yunck. Synonym L TRO
Piper ottoniifolium var. latifolium Trel. & Yunck. Synonym L TRO
Piper ottonis (Miq.) C. DC. Synonym M TRO
Piper ottonoides Yunck. Accepted M TRO
Piper ovale C. DC. Synonym M TRO
Piper ovalifolium C. DC. Synonym M TRO
Piper ovantherum C. DC. Accepted M TRO
Piper ovatibaccum C.DC. Unresolved L WCSP (in review)
Piper ovatifolium Yunck. Synonym M TRO
Piper ovatilimbum C. DC. Accepted M TRO
Piper ovatilimbum var. ovatilimbum Synonym L TRO
Piper ovatistigmum C.DC. Unresolved L WCSP (in review)
Piper ovatoacuminatum C.DC. Unresolved L WCSP (in review)
Piper ovatostemon C.DC. Unresolved L WCSP (in review)
Piper ovatum Vahl Accepted M WCSP (in review)
Piper oviedoi Urb. Unresolved L WCSP (in review)
Piper oxycarpum C.DC. Unresolved L WCSP (in review)
Piper oxyphyllum C. DC. Accepted M TRO
Piper oxystachyum C. DC. Accepted M TRO
Piper pablense Trel. Synonym M WCSP (in review)
Piper pabstii C. DC. Synonym M TRO
Piper pacacanum Trel. Synonym M TRO
Piper pachoanum C. DC. Accepted M TRO
Piper pachyarthrum K.Schum. Unresolved L WCSP (in review)
Piper pachyphloium C. DC. Accepted M TRO
Piper pachypholium C.DC. ex Kuntze Unresolved L WCSP (in review)
Piper pachyphyllum Baker Accepted M TRO
Piper pachystachyon C. DC. Synonym M TRO
Piper pachystylum Trel. Synonym M TRO
Piper padangense C.DC. Unresolved L WCSP (in review)
Piper padifolium (Kunth) C. DC. Accepted M TRO
Piper paezanum C. DC. Synonym M TRO
Piper paganicum Trel. Accepted M TRO
Piper paitense Schltr. Unresolved L WCSP (in review)
Piper palawanum C.DC. Unresolved L WCSP (in review)
Piper palestinanum Trel. & Yunck. Accepted M WCSP (in review)
Piper pallens Poir. Unresolved L WCSP (in review)
Piper pallescens C.DC. Synonym M WCSP (in review)
Piper pallidibracteum C. DC. Synonym M TRO
Piper pallididorsum Trel. Accepted M TRO
Piper pallidifolium C. DC. Synonym M TRO
Piper pallidilimbum C.DC. Unresolved L WCSP (in review)
Piper pallidirameum C. DC. Synonym M TRO
Piper pallidirameum var. subcrassifolium C. DC. Synonym L TRO
Piper pallidirameum var. sublongirameum C. DC. Synonym L TRO
Piper pallidirubrum C.DC. Unresolved L WCSP (in review)
Piper pallidum G.Forst. Unresolved L WCSP (in review)
Piper pallidum Salisb. Unresolved L WCSP (in review)
Piper pallidum Van Heurck & Müll.Arg. Unresolved L WCSP (in review)
Piper palmanum Trel. Synonym M TRO
Piper palmasanum C. DC. Synonym M TRO
Piper palmeri C.DC. Unresolved L WCSP (in review)
Piper paludicola Trel. Synonym M WCSP (in review)
Piper paludosum C. DC. Accepted M TRO
Piper paluense Hosok. Unresolved L TRO
Piper palustre C. DC. Synonym L TRO
Piper pamploanum Trel. & Yunck. Accepted M TRO
Piper panamense C.DC. Synonym M WCSP (in review)
Piper pandoense Yunck. Accepted M TRO
Piper panduratum C.DC. Unresolved L WCSP (in review)
Piper pangoense C. DC. Synonym M TRO
Piper paniculatum Willd. ex C.DC. Unresolved L WCSP (in review)
Piper pansamalanum C.DC. Synonym M WCSP (in review)
Piper pantjarense C.DC. Unresolved L WCSP (in review)
Piper papantlense C.DC. Synonym M WCSP (in review)
Piper papillicarpum Trel. Synonym L WCSP (in review)
Piper papillicaule Trel. & Yunck. Accepted M TRO
Piper papilliferum Steyerm. Accepted M WCSP (in review)
Piper papillipetiolatum Trel. Synonym M TRO
Piper papulaecaule Trel. ex Standl. Unresolved L WCSP (in review)
Piper papulatum Trel. Synonym M WCSP (in review)
Piper papulicaule Trel. Synonym M WCSP (in review)
Piper papyraceum Trel. Synonym M TRO
Piper paracaimanum C.DC. Unresolved L WCSP (in review)
Piper paraense (Miq.) C. DC. Accepted L TRO
Piper paraguassuanum C. DC. Accepted M TRO
Piper paraguayense D.Parodi Unresolved L WCSP (in review)
Piper paraisense Trel. Accepted M TRO
Piper paralaevigatum Trel. Accepted M TRO
Piper paramaribense C. DC. Accepted M TRO
Piper paramattense C.DC. Unresolved L WCSP (in review)
Piper paranapuranum Trel. Synonym M TRO
Piper paranum Yunck. Accepted M WCSP (in review)
Piper parapeltobryon Trel. Accepted M WCSP (in review)
Piper parcepilosum Trel. Synonym M TRO
Piper parcipilum C.DC. Unresolved L WCSP (in review)
Piper parcirameum C.DC. Unresolved L WCSP (in review)
Piper parcum Trel. & Yunck. Accepted M TRO
Piper pardinum C. DC. Synonym M TRO
Piper parianum Yunck. Accepted M WCSP (in review)
Piper parimanum Trel. Synonym M WCSP (in review)
Piper parkerianum (Miq.) C.DC. Synonym M WCSP (in review)
Piper parmatum Dressler Accepted M TRO
Piper parong Quisumb. Unresolved L WCSP (in review)
Piper parryanum Trel. Unresolved L WCSP (in review)
Piper parthenium Mart. Synonym M TRO
Piper parthenium var. pilosius C. DC. Synonym L TRO
Piper partiticuspe Trel. Synonym M TRO
Piper parvantherum C.DC. Unresolved L WCSP (in review)
Piper parvibracteatum C.DC. Unresolved L WCSP (in review)
Piper parvicordulatum Trel. Accepted M TRO
Piper parvifolium Blanco Unresolved L WCSP (in review)
Piper parvilimbum C.DC. Unresolved L WCSP (in review)
Piper parvipedunculum C.DC. Unresolved L WCSP (in review)
Piper parvipetiolum C.DC. Unresolved L WCSP (in review)
Piper parvispica C.DC. Unresolved L WCSP (in review)
Piper parvulum M. Martens & Galeotti Synonym M TRO
Piper paso-anchoense Trel. Synonym M WCSP (in review)
Piper pastasanum Diels Accepted M TRO
Piper pastasanum f. impilosum Diels Synonym L TRO
Piper pastasanum f. intermedium Diels Synonym L TRO
Piper pastasanum f. pleiotrichum Diels Synonym L TRO
Piper pastoense C. DC. Synonym M TRO
Piper patens Opiz Accepted M TRO
Piper patentifolium Trel. Accepted M TRO
Piper patulipilum Yunck. Synonym M WCSP (in review)
Piper patulum M.Martens & Galeotti [Illegitimate] Synonym M WCSP (in review)
Piper patulum Bertol. Accepted M TRO
Piper patulum var. cordifolium Trel. Synonym L WCSP (in review)
Piper patzulinum Trel. & Standl. Accepted M TRO
Piper paucartamboanum Trel. Accepted M TRO
Piper paucinerve C.DC. Unresolved L WCSP (in review)
Piper paucipilosum Yunck. Accepted M TRO
Piper pauciramosum Yunck. Accepted M TRO
Piper paucistigmum C.DC. Unresolved L WCSP (in review)
Piper paulianifolium Trel. Accepted M TRO
Piper paulianum C.DC. Unresolved L WCSP (in review)
Piper paulownifolium C.DC. Synonym M WCSP (in review)
Piper pavasense Trel. Synonym M WCSP (in review)
Piper pavasense Steyerm. [Illegitimate] Synonym M WCSP (in review)
Piper pavimentifolium Trel. Unresolved L WCSP (in review)
Piper pavonii (Miq.) C.DC. Accepted M WCSP (in review)
Piper payanum Yunck. Accepted M TRO
Piper pearcei Yunck. Unresolved L WCSP (in review)
Piper pebasense Trel. Accepted M TRO
Piper peculiare Trel. & Yunck. Accepted M TRO
Piper pedicellare C. DC. Synonym M TRO
Piper pedicellatum C. DC. Accepted M TRO
Piper pedicellosum Wall. Unresolved L WCSP (in review)
Piper pedunculare (Miq.) C. DC. Accepted L TRO
Piper pedunculatum C. DC. Synonym M TRO
Piper peekelii C.DC. Synonym M WCSP (in review)
Piper peepuloides Wall. Unresolved L WCSP (in review)
Piper peepuloides Roxb. Unresolved L WCSP (in review)
Piper pejivallense Trel. Synonym M WCSP (in review)
Piper pelliticaule Trel. Synonym M WCSP (in review)
Piper pellitum C. DC. Accepted M TRO
Piper pellucidum L. Synonym M WCSP (in review)
Piper peltaphyllum C.DC. Synonym M WCSP (in review)
Piper peltaphyllum var. lasvueltasanum C. DC. Synonym L TRO
Piper peltatum L. Accepted M WCSP (in review)
Piper peltatum var. colombianum C. DC. Synonym L TRO
Piper peltilimbum Yunck. Accepted M TRO
Piper peltobryon C.DC. Synonym L WCSP (in review)
Piper peltoideum (Kunth) Poir. Synonym M TRO
Piper penangense (Miq.) C. DC. Accepted L TRO
Piper pendens Trel. Synonym M TRO
Piper pendens var. infaustum Trel. Synonym L TRO
Piper pendentispicum Trel. & Yunck. Accepted M WCSP (in review)
Piper pendentispicum var. furcatipilosum (Yunck.) Steyerm. Accepted L WCSP (in review)
Piper pendentispicum var. pendentispicum Synonym L TRO
Piper pendentispicum var. tejamesmeanum Trel. & Yunck. Synonym L TRO
Piper pendulifolium C.DC. Unresolved L WCSP (in review)
Piper pendulirameum Trel. & Yunck. Accepted M TRO
Piper pendulispicum C.DC. Unresolved L WCSP (in review)
Piper pendulum Willd. ex Schult. Unresolved L WCSP (in review)
Piper pendulum Warb. Unresolved L WCSP (in review)
Piper pennellii Trel. & Yunck. Synonym M TRO
Piper penninerve C.DC. Unresolved L WCSP (in review)
Piper pentagonum Trel. Synonym M TRO
Piper pentandrum C.DC. Unresolved L WCSP (in review)
Piper penyasense Trel. & Yunck. Accepted M TRO
Piper peploides (Kunth) Poir. Synonym M TRO
Piper peracuminatum C.DC. Accepted M WCSP (in review)
Piper peracutilimbum C.DC. Unresolved L WCSP (in review)
Piper perareolatum C. DC. Accepted M TRO
Piper peraromaticum C.DC. Unresolved L WCSP (in review)
Piper perbarbatum C.DC. Unresolved L WCSP (in review)
Piper perbrevicaule Yunck. Accepted M TRO
Piper perbrevicaule var. perbrevicaule Synonym L TRO
Piper perbrevicaule var. subglabrilimbum Yunck. Synonym L TRO
Piper perbrevispicum Yunck. Accepted M TRO
Piper perciliatum Trel. & Yunck. Accepted M WCSP (in review)
Piper percome Trel. Synonym M TRO
Piper percostatum Yunck. Accepted M TRO
Piper perditum Trel. Unresolved L WCSP (in review)
Piper perenense Trel. Accepted M TRO
Piper perenense var. perenense Synonym L TRO
Piper pereskiifolium Jacq. Synonym M WCSP (in review)
Piper perforatum D.Dietr. Unresolved L WCSP (in review)
Piper perfugii Trel. Synonym M TRO
Piper pergamentifolium Trel. & Standl. Synonym M WCSP (in review)
Piper pergeniculatum Trel. Synonym M WCSP (in review)
Piper perhispidum C.DC. Accepted M WCSP (in review)
Piper perijaense Steyerm. Accepted M WCSP (in review)
Piper perinaequilongum Trel. Synonym L WCSP (in review)
Piper perlasense Yunck. Synonym M WCSP (in review)
Piper perlongipedunculum Trel. & Standl. Accepted M TRO
Piper perlongipes Trel. Synonym M WCSP (in review)
Piper perlongispicum Yunck. Synonym M WCSP (in review)
Piper perlongivillosum Yunck. Synonym M WCSP (in review)
Piper permarii Trel. Synonym M TRO
Piper permolle Trel. & Yunck. Accepted M TRO
Piper permucronatum Yunck. Accepted M TRO
Piper pernigricans Trel. Accepted M TRO
Piper pernodosum Yunck. Accepted M TRO
Piper pernodulosum Trel. & Yunck. Synonym M TRO
Piper perobumbratum Trel. Accepted M TRO
Piper perpallidum Ekman, Urb. & Trel. Unresolved L WCSP (in review)
Piper perpilibracteum Yunck. Synonym L TRO
Piper perpilosum C.DC. Unresolved L WCSP (in review)
Piper perpuberulum Trel. Synonym M TRO
Piper perpunctatum C.DC. Unresolved L WCSP (in review)
Piper perpunctulatum Trel. Accepted M TRO
Piper perpurgatum Trel. Accepted M TRO
Piper perpusillum R. Callejas P. Accepted M TRO
Piper perrottetii C.DC. Unresolved L WCSP (in review)
Piper perscabrifolium Yunck. Accepted M TRO
Piper persicariaefolium Kunth Unresolved L TRO
Piper persicariifolium Kunth Unresolved L WCSP (in review)
Piper perspicuibracteum Trel. Synonym M WCSP (in review)
Piper perstipulare Steyerm. Accepted M WCSP (in review)
Piper perstrigosum Yunck. Accepted M TRO
Piper persubulatum C. DC. Accepted M TRO
Piper pertiactatum Trel. Unresolved L WCSP (in review)
Piper pertinax Trel. & Yunck. Accepted M TRO
Piper pertomentellum Trel. & Yunck. Accepted M TRO
Piper pertractatum Trel. Synonym M WCSP (in review)
Piper peruligerum Trel. Accepted M TRO
Piper peruvianum (Miq.) C. DC. Accepted L TRO
Piper pervelutinum Trel. Accepted M TRO
Piper pervenosum C. DC. ex L.J. Schroed. Accepted M TRO
Piper pervenulosum Yunck. Synonym M WCSP (in review)
Piper perverrucosum Trel. & Yunck. Accepted M WCSP (in review)
Piper pervicax Trel. Synonym M WCSP (in review)
Piper pervillosum Trel. Synonym M TRO
Piper pervulgatum Trel. Accepted M TRO
Piper pervulsum Trel. & Yunck. Accepted M TRO
Piper pesaresanum C.DC. Synonym M WCSP (in review)
Piper petens Trel. Accepted M WCSP (in review)
Piper petiolare C. DC. Accepted M TRO
Piper petiolatum C.DC. Unresolved L WCSP (in review)
Piper petiolatum Hook.f. Unresolved L WCSP (in review)
Piper petraeum C.DC. Unresolved L WCSP (in review)
Piper pexum Trel. Synonym M TRO
Piper phaeophyllum Trel. & Standl. Synonym M WCSP (in review)
Piper phalangense C.DC. Unresolved L WCSP (in review)
Piper phanerolepidum Trel. Synonym M WCSP (in review)
Piper phaneropus Trel. Unresolved L WCSP (in review)
Piper phegophyllum Trel. Synonym L TRO
Piper philippinense C.DC. Unresolved L WCSP (in review)
Piper philippinum Miq. Accepted M TRO
Piper philodendmn Ridl. Unresolved L WCSP (in review)
Piper philodendroides Standl. & Steyerm. Accepted M TRO
Piper photomorphe C. DC. Accepted M TRO
Piper phthinotrichon (Miq.) C. DC. Synonym L TRO
Piper phthinotrichon var. sanroqueanum Trel. Synonym L TRO
Piper phuwuaense Chaveer. & Tanee Unresolved L WCSP (in review)
Piper phyllanthus Willd. ex A.Dietr. Unresolved L WCSP (in review)
Piper phyllostictum (Miq.) C. DC. Accepted L TRO
Piper phytolaccifolium Opiz Accepted L WCSP (in review)
Piper phytolaccifolium var. carabobense (C.DC.) Steyerm. Accepted L WCSP (in review)
Piper phytolaccifolium var. peltobryon (C.DC.) Trel. & Yunck. Synonym L WCSP (in review)
Piper phytolaccifolium f. peltobryon (C.DC.) Steyerm. Synonym L WCSP (in review)
Piper phytolaccifolium var. phytolaccifolium Synonym L TRO
Piper picardae C.DC. Unresolved L WCSP (in review)
Piper picardae var. pilinervium Trel. Synonym L TRO
Piper pichisense Trel. Synonym M TRO
Piper picobonitoense F.G. Coe & Bornst. Accepted M TRO
Piper pictamentum Trel. Synonym M WCSP (in review)
Piper pictamentum var. fluminis Trel. Synonym L WCSP (in review)
Piper piedadesense Trel. Synonym M WCSP (in review)
Piper piedecuestanum Trel. & Yunck. Accepted M TRO
Piper pierrei C. DC. Synonym M TRO
Piper pileatum Trel. Synonym M TRO
Piper pileatum var. obliquum Trel. Synonym L TRO
Piper pilgeri C.DC. Accepted M WCSP (in review)
Piper pilibaccum C.DC. Synonym M WCSP (in review)
Piper pilibracteum Trel. & Yunck. Accepted M TRO
Piper pilinervium C. DC. Synonym M TRO
Piper pilipedunculum C.DC. Unresolved L WCSP (in review)
Piper pilipes C.DC. Unresolved L WCSP (in review)
Piper pilirameum C. DC. Accepted M TRO
Piper pilirameum var. subglabrum Yunck. Synonym L TRO
Piper pilispicum C.DC. Unresolved L WCSP (in review)
Piper pilobracteatum Chaveer. & Sudmoon Unresolved L WCSP (in review)
Piper pilosissimum Yunck. Accepted M TRO
Piper pilosiusculum Opiz Synonym L TRO
Piper pilosulinodum C.DC. Unresolved L WCSP (in review)
Piper pilosum (Ruiz & Pav.) Vahl Synonym M TRO
Piper pilovarium Yunck. Accepted M TRO
Piper piluliferifolium Trel. & Yunck. Accepted M TRO
Piper piluliferum Kunth Accepted M TRO
Piper pinaresanum Trel. & Yunck. Accepted M TRO
Piper pinedoana Trel. Accepted M TRO
Piper pinetorum Standl. & Steyerm. Accepted M TRO
Piper pingbienense Y.Q. Tseng Accepted M TRO
Piper pinguifolium C. DC. Accepted M TRO
Piper pinguispicum C.DC. & Koord. Unresolved L WCSP (in review)
Piper pinnatum Lour. Unresolved L WCSP (in review)
Piper pinoganense Trel. Accepted M TRO
Piper pinuna-negroense Trel. & Yunck. Accepted M TRO
Piper piojoanum Trel. & Yunck. Accepted L TRO
Piper piresii Yunck. Accepted M TRO
Piper piritubanum Yunck. Accepted M TRO
Piper piscatorum Trel. & Yunck. Accepted M WCSP (in review)
Piper pisoense C. DC. Synonym L TRO
Piper pitalitoense Yunck. Accepted M TRO
Piper pitanum C. DC. Synonym M TRO
Piper pittieri C.DC. Accepted M WCSP (in review)
Piper plagiocladum C. DC. Synonym M TRO
Piper plagiophyllum K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper planadosense Trel. & Standl. Accepted M TRO
Piper planifolium Poir. Unresolved L WCSP (in review)
Piper planipes Trel. Accepted M TRO
Piper planipes var. planipes Synonym L TRO
Piper planitiei Trel. & Yunck. Accepted M TRO
Piper plantagineum Lam. Synonym L WCSP (in review)
Piper plantaginifolium D.Dietr. Unresolved L WCSP (in review)
Piper platannanum Trel. Unresolved L WCSP (in review)
Piper platylobum Sodiro Accepted M TRO
Piper platyphyllum (Benth.) C. DC. Accepted L TRO
Piper playa-blancanum Trel. Synonym M TRO
Piper pleiocarpum C.C. Chang ex Y.Q. Tseng Accepted M TRO
Piper pleninervosum Trel. Synonym M TRO
Piper plicatum D.Dietr. Unresolved L WCSP (in review)
Piper plukenetianum C.DC. Unresolved L WCSP (in review)
Piper plumanum C.DC. Unresolved L WCSP (in review)
Piper plumbeicolor Trel. Synonym M WCSP (in review)
Piper plurinervosum Yunck. Accepted M WCSP (in review)
Piper poasanum C.DC. Accepted M WCSP (in review)
Piper podandrum C.DC. Unresolved L WCSP (in review)
Piper poeppigii (Kunth) Steud. Synonym M TRO
Piper pogonioneuron Trel. & Standl. Accepted M TRO
Piper pohlianum (Miq.) C. DC. Accepted M TRO
Piper poiretianum C.DC. Unresolved L WCSP (in review)
Piper poiteanum Steud. Synonym M WCSP (in review)
Piper polisanum C.DC. Unresolved L WCSP (in review)
Piper politaereum Trel. Accepted M TRO
Piper politaereum var. politaereum Synonym L TRO
Piper politifolium C.DC. Unresolved L WCSP (in review)
Piper politii Yunck. Accepted M WCSP (in review)
Piper politii subsp. politii Synonym L TRO
Piper politum C. DC. Accepted M TRO
Piper politum var. politum Synonym L TRO
Piper polybotrya Poir. Unresolved L WCSP (in review)
Piper polybotryon Spreng. Synonym M TRO
Piper polybotryum Poir. Synonym M TRO
Piper polycarpum Ridl. Unresolved L WCSP (in review)
Piper polycladum C.DC. Unresolved L WCSP (in review)
Piper polygynum C.DC. Unresolved L WCSP (in review)
Piper polyneurum C. DC. ex A. Schroed. Synonym M TRO
Piper polystachyon Aiton Synonym M TRO
Piper polystachyum C.DC. Unresolved L WCSP (in review)
Piper polysyphonum C. DC. Accepted M TRO
Piper polytrichum C.DC. Accepted M WCSP (in review)
Piper ponapense C.DC. Unresolved L WCSP (in review)
Piper ponendum Trel. Synonym M WCSP (in review)
Piper ponesheense C. DC. Accepted M TRO
Piper ponganum Trel. Accepted M TRO
Piper pontis Trel. Accepted M TRO
Piper popayanense C. DC. Accepted M TRO
Piper poporense Trel. & Yunck. Accepted M TRO
Piper populifolium Kunth Unresolved L WCSP (in review)
Piper populifolium Opiz Unresolved L WCSP (in review)
Piper porphyrophyllum N.E.Br. Unresolved L WCSP (in review)
Piper porrectum C.DC. Unresolved L WCSP (in review)
Piper portachueloense Trel. & Yunck. Synonym M WCSP (in review)
Piper portalense Trel. Synonym M TRO
Piper portobellense C. DC. Synonym M TRO
Piper portulacaefolium Roem. & Schult. Synonym M TRO
Piper portulacifolium Poir. Unresolved L WCSP (in review)
Piper portulacoides Lam. Synonym M TRO
Piper porveniricola Trel. Accepted M TRO
Piper poscitum Trel. & Yunck. Accepted M TRO
Piper positum Trel. Accepted M TRO
Piper postelsianum Maxim. Synonym M TRO
Piper posusanum Trel. Accepted M TRO
Piper potamogetonifolium Opiz Unresolved L WCSP (in review)
Piper potamophilum Trel. & Yunck. Accepted M TRO
Piper pothifolium Kunth Synonym M TRO
Piper pothiforme Wall. ex C.DC. Unresolved L WCSP (in review)
Piper pothoides Wall. Unresolved L WCSP (in review)
Piper pothomorphe (Miq.) C. DC. Accepted L TRO
Piper pothophyllum Trel. Accepted M TRO
Piper poueri A.H. Gentry Unresolved L TRO
Piper praeacutilimbum C. DC. Accepted M TRO
Piper praeclarum Trel. Synonym M TRO
Piper praecox C.DC. Unresolved L WCSP (in review)
Piper praegnans Rich. ex C.DC. Unresolved L WCSP (in review)
Piper praemollitum Trel. Synonym M WCSP (in review)
Piper praemorsum Rottb. ex Vahl Synonym L TRO
Piper praesagium Trel. & Yunck. Accepted M TRO
Piper praeterlatum Trel. Synonym M WCSP (in review)
Piper premnospicum Tebbs Accepted M TRO
Piper preslii C. DC. Synonym M TRO
Piper presliiaingii C. DC. Unresolved L TRO
Piper prianamense C.DC. Unresolved L WCSP (in review)
Piper prietoi Yunck. Accepted M TRO
Piper pringlei C.DC. Unresolved L WCSP (in review)
Piper prismaticum C.DC. Accepted M WCSP (in review)
Piper prismaticum var. magnifolium (C. DC.) Trel. Accepted L TRO
Piper prismaticum var. tilaranum Trel. Synonym L WCSP (in review)
Piper prismaticum var. villosulum Trel. Synonym L WCSP (in review)
Piper procerifolium C.DC. Unresolved L WCSP (in review)
Piper procerum Trel. Accepted M TRO
Piper prodigum Trel. Synonym M WCSP (in review)
Piper productispicum Yunck. Accepted M TRO
Piper propinquum C. DC. Accepted M TRO
Piper propinquum var. brevistylum Trel. Synonym L TRO
Piper propinquum var. grande Trel. Synonym L TRO
Piper propinquum var. propinquum Synonym L TRO
Piper protracticuspidatum Trel. & Yunck. Accepted M TRO
Piper protractispicum C.DC. Unresolved L WCSP (in review)
Piper protractum C.DC. Unresolved L WCSP (in review)
Piper provulgatum Trel. & Yunck. Accepted M TRO
Piper pruinosum Kunth Synonym M WCSP (in review)
Piper prunifolium J.Jacq. Accepted M WCSP (in review)
Piper prunifolium subsp. artanthe Steyerm. Synonym L TRO
Piper prunifolium var. carboneranum (Yunck.) Steyerm. Accepted L WCSP (in review)
Piper prunifolium subsp. prunifolium Synonym L TRO
Piper prunifolium var. prunifolium Synonym L TRO
Piper prunifolium var. tachiranum (Yunck.) Steyerm. Synonym L WCSP (in review)
Piper pseudamboinense C.DC. Unresolved L WCSP (in review)
Piper pseudoacreanum Steyerm. Accepted M WCSP (in review)
Piper pseudoaduncum C.DC. Unresolved L WCSP (in review)
Piper pseudoaequale Steyerm. Accepted M WCSP (in review)
Piper pseudoalbuginiferum Trel. Synonym M TRO
Piper pseudoamalago C.DC. Unresolved L WCSP (in review)
Piper pseudoarboreum Yunck. Accepted M TRO
Piper pseudoarmatum Yunck. Synonym M TRO
Piper pseudoasperifolium C.DC. Accepted M WCSP (in review)
Piper pseudobarbatum C. DC. Accepted M TRO
Piper pseudoblattarum C.DC. Unresolved L WCSP (in review)
Piper pseudobredemeyeri Steyerm. Accepted M WCSP (in review)
Piper pseudocallosum Trel. Accepted M TRO
Piper pseudocativalense Trel. Accepted M TRO
Piper pseudochavica C.DC. Unresolved L WCSP (in review)
Piper pseudochurumayu (Kunth) Poepp. ex Steud. Synonym M WCSP (in review)
Piper pseudochurumayu (Kunth) C. DC. Synonym M TRO
Piper pseudochurumayu var. membranaceum C.DC. Synonym L WCSP (in review)
Piper pseudoconfusum C.DC. Unresolved L WCSP (in review)
Piper pseudocurvatum Trel. Synonym M TRO
Piper pseudodilatatum C.DC. Synonym M WCSP (in review)
Piper pseudodivulgatum Steyerm. Accepted M WCSP (in review)
Piper pseudoeucalyptifolium Trel. & Yunck. Accepted M WCSP (in review)
Piper pseudofimbriulatum Trel. Synonym M WCSP (in review)
Piper pseudoflexuosum Trel. Accepted M TRO
Piper pseudofuligineum C.DC. Accepted M WCSP (in review)
Piper pseudogaragaranum Trel. Accepted M TRO
Piper pseudoglabrescens Trel. & Yunck. Accepted M WCSP (in review)
Piper pseudoglabrifolium Trel. Synonym M WCSP (in review)
Piper pseudogrande Yunck. Accepted M TRO
Piper pseudohastularum Steyerm. Accepted M WCSP (in review)
Piper pseudohastulatum Steyerm. Unresolved L WCSP (in review)
Piper pseudojalapense McKown Unresolved L WCSP (in review)
Piper pseudolanceifolium Trel. Synonym M WCSP (in review)
Piper pseudolanceolatum C. DC. Synonym M TRO
Piper pseudolindenii C.DC. Accepted M WCSP (in review)
Piper pseudolindenii var. magnifolium C.DC. Synonym L WCSP (in review)
Piper pseudomarginatum C. DC. Synonym M TRO
Piper pseudomatico Trel. Accepted M TRO
Piper pseudomollicomum C. DC. Accepted M TRO
Piper pseudomollicomum var. pseudomollicomum Synonym L TRO
Piper pseudomunchanum Trel. Accepted M TRO
Piper pseudonifrum C. DC. Unresolved L TRO
Piper pseudonigrum Velay. & Amalraj Unresolved L WCSP (in review)
Piper pseudonobile C. DC. Synonym M TRO
Piper pseudooblongum McKown Unresolved L WCSP (in review)
Piper pseudoperuvianum C. DC. Accepted M TRO
Piper pseudopopayanense Trel. & Yunck. Accepted M TRO
Piper pseudopothifolium C.DC. Accepted M WCSP (in review)
Piper pseudopropinquum C. DC. Synonym M TRO
Piper pseudopsis C.DC. Synonym M WCSP (in review)
Piper pseudorubeba Korth. ex Miq. Unresolved L WCSP (in review)
Piper pseudosylvaticum C.DC. Unresolved L WCSP (in review)
Piper pseudottonia E.F.Guim. & Ichaso Unresolved L WCSP (in review)
Piper pseudoumbratum C.DC. Synonym M WCSP (in review)
Piper pseudovariabile Trel. Synonym M TRO
Piper pseudovariabile var. collium Trel. Synonym L TRO
Piper pseudovariabile var. pachypus Trel. Synonym L TRO
Piper pseudovelutinum C. DC. Synonym L TRO
Piper pseudovelutinum var. flavescens C.DC. Synonym L WCSP (in review)
Piper pseudoviridicaule Trel. Unresolved L WCSP (in review)
Piper pseudoviridicaule var. nievecitanum Trel. Synonym L TRO
Piper pseudovulgatum Steyerm. Unresolved L WCSP (in review)
Piper psilocarpum C. DC. Synonym M TRO
Piper psilocladum C.DC. Synonym L WCSP (in review)
Piper psilophyllum C. DC. Accepted M TRO
Piper psilophyllum var. lanceifolium Yunck. Synonym L TRO
Piper psilorhachis C.DC. Accepted M WCSP (in review)
Piper psilostachyum Kunth Accepted M TRO
Piper psittacorum Endl. Synonym M TRO
Piper pterocladum C. DC. Accepted M TRO
Piper pteropoda (Moric.) C. DC. Accepted M TRO
Piper pubarulipes C.DC. Unresolved L WCSP (in review)
Piper pubens Trel. Synonym M WCSP (in review)
Piper puberulescens Trel. Accepted M TRO
Piper puberulibaccum C.DC. Unresolved L WCSP (in review)
Piper puberulibracteum C. DC. Synonym M TRO
Piper puberuliciliatum Yunck. Accepted M TRO
Piper puberulidrupum Yunck. Accepted M TRO
Piper puberulilimbum C. DC. Accepted M TRO
Piper puberulinerve C. DC. Accepted M TRO
Piper puberulinodum C.DC. Unresolved L WCSP (in review)
Piper puberulirameum C.DC. Unresolved L WCSP (in review)
Piper puberulispicum C.DC. Unresolved L WCSP (in review)
Piper puberulum (Benth.) Maxim. Synonym L TRO
Piper puberulum var. glabrum (C.DC.) A.C.Sm. Unresolved L WCSP (in review)
Piper pubescens Vahl Unresolved L WCSP (in review)
Piper pubescens Haw. Unresolved L WCSP (in review)
Piper pubescens Sol. ex C.DC. Unresolved L WCSP (in review)
Piper pubescens Pers. Unresolved L WCSP (in review)
Piper pubibaccum C. DC. Accepted M TRO
Piper pubicatulum C. DC. Accepted M TRO
Piper pubinerve C. DC. Synonym M TRO
Piper pubinervulum C. DC. Accepted M TRO
Piper pubiovarium Yunck. Accepted M TRO
Piper pubipedunculum C.DC. Unresolved L WCSP (in review)
Piper pubipes C.DC. Unresolved L WCSP (in review)
Piper pubipetiolum C.DC. Unresolved L WCSP (in review)
Piper pubirhache C.DC. Unresolved L WCSP (in review)
Piper pubistipulum C. DC. Accepted M TRO
Piper pubistipulum var. eustylosum Trel. Synonym L TRO
Piper pubisubmarginalum Yunck. Accepted M TRO
Piper pubisubmarginatum Yunck. Unresolved L WCSP (in review)
Piper pubivaginatum Steyerm. Accepted M WCSP (in review)
Piper puente-altoanum Trel. Synonym M WCSP (in review)
Piper pulchellum Aiton Synonym M WCSP (in review)
Piper pulchrum C. DC. Accepted M TRO
Piper pulchrum var. copeyanum C. DC. Synonym L TRO
Piper pulchrum var. costaricense C. DC. Synonym L TRO
Piper pulicare D.Dietr. Unresolved L WCSP (in review)
Piper pulleanum Yunck. Accepted M TRO
Piper pullibaccum Trel. Unresolved L WCSP (in review)
Piper pullibracteatum Trel. Synonym M WCSP (in review)
Piper pullispicum Trel. Accepted M TRO
Piper pulogense C.DC. Unresolved L WCSP (in review)
Piper pumilum D.Dietr. Unresolved L WCSP (in review)
Piper punctatissimum C.DC. Unresolved L WCSP (in review)
Piper punctatum Ruiz & Pav. Synonym M TRO
Piper puncticulatum Ridl. Unresolved L WCSP (in review)
Piper punctiunculatum Trel. Synonym M WCSP (in review)
Piper punctulantherum C. DC. Accepted M TRO
Piper punctulatifolium Trel. Synonym L TRO
Piper punctulatum Standl. & Steyerm. Accepted M TRO
Piper punctulivenum C.DC. Unresolved L WCSP (in review)
Piper puniceum Trel. Accepted M TRO
Piper puraceanum Trel. & Yunck. Accepted M TRO
Piper purdiei C. DC. Accepted M TRO
Piper purpurascens D. Dietr. Synonym M TRO
Piper purpureum (Ruiz & Pav.) Vahl Synonym M TRO
Piper purpusianum Trel. Unresolved L WCSP (in review)
Piper purulentum Trel. & Yunck. Accepted M TRO
Piper purulhanum C. DC. Synonym M TRO
Piper purusanum Yunck. Accepted M TRO
Piper pusillum Blume Synonym M TRO
Piper pustulatum Yunck. Accepted M TRO
Piper pustulicaule Trel. Synonym M WCSP (in review)
Piper putumayoense Trel. & Yunck. Accepted M TRO
Piper puyoense Yunck. Accepted M TRO
Piper pygmaeum Yunck. Accepted M TRO
Piper pykarahense C.DC. Unresolved L WCSP (in review)
Piper pyrifolium Vahl Accepted M TRO
Piper quadrangulare J.V.Thomps. Synonym M WCSP (in review)
Piper quadrangulum Willd. ex Miq. Synonym M TRO
Piper quadratilimbum Trel. Synonym M WCSP (in review)
Piper quadratiovarium Yunck. Accepted M TRO
Piper quadrifolium L. Synonym M WCSP (in review)
Piper quebradense Trel. Synonym M TRO
Piper quentinii Trel. Unresolved L WCSP (in review)
Piper quillandanum Trel. & Ekman Unresolved L WCSP (in review)
Piper quimirianum Trel. Accepted M TRO
Piper quinqueangulatum Miq. Unresolved L WCSP (in review)
Piper quinquenervium Warb. Unresolved L WCSP (in review)
Piper quintuplinervium C.DC. Unresolved L WCSP (in review)
Piper quiriguanum Trel. Synonym M WCSP (in review)
Piper quitense C.DC. Accepted M WCSP (in review)
Piper raapii C.DC. Unresolved L WCSP (in review)
Piper racemosum Vahl Synonym M TRO
Piper radicans Vahl Unresolved L WCSP (in review)
Piper radula Kunth Synonym M WCSP (in review)
Piper rafflesii (Miq.) C. DC. Accepted L TRO
Piper raizudoanum Trel. & Yunck. Accepted M TRO
Piper ramipilum C.DC. Unresolved L WCSP (in review)
Piper ramosense Yunck. Accepted M TRO
Piper ramosii C.DC. Unresolved L WCSP (in review)
Piper rarispicum C.DC. Unresolved L WCSP (in review)
Piper rarum C.DC. Accepted M WCSP (in review)
Piper rasile Trel. Accepted M TRO
Piper ratisportanum Trel. Synonym M TRO
Piper readii C.DC. Unresolved L WCSP (in review)
Piper realgoanum C.DC. Synonym L WCSP (in review)
Piper recensitum Trel. Accepted M TRO
Piper recessum R.O.Gardner Unresolved L WCSP (in review)
Piper rechingeri C.DC. Unresolved L WCSP (in review)
Piper reciprocum Trel. Synonym M TRO
Piper recreoense Trel. Accepted M TRO
Piper rectamentum Trel. Synonym M WCSP (in review)
Piper rectinervulum C.DC. Unresolved L WCSP (in review)
Piper rectispicum Trel. Synonym M TRO
Piper recuperatum Trel. Synonym L WCSP (in review)
Piper recurvatum Blume Unresolved L WCSP (in review)
Piper recurvum Blume Unresolved L WCSP (in review)
Piper recurvum Rich. ex C.DC. Unresolved L WCSP (in review)
Piper redactum Trel. Accepted M TRO
Piper reductipes Trel. Accepted M TRO
Piper reductipes var. reductipes Synonym L TRO
Piper reflexum L.f. Synonym M WCSP (in review)
Piper regale C. DC. Accepted M TRO
Piper regelii C.DC. Unresolved L WCSP (in review)
Piper regnellii (Miq.) C.DC. Accepted M WCSP (in review)
Piper regnellii var. pallescens (C.DC.) Yunck. Synonym L WCSP (in review)
Piper regresivanum Trel. & Yunck. Accepted M TRO
Piper reinwardtianum (Miq.) C. DC. Accepted M TRO
Piper reitzii Yunck. Accepted M TRO
Piper relaxatum Trel. Accepted M TRO
Piper rematense Trel. Synonym M TRO
Piper remotinervium Görts Unresolved L WCSP (in review)
Piper reniforme Willd. ex Link Unresolved L WCSP (in review)
Piper reniforme Poir. Unresolved L WCSP (in review)
Piper renitens (Miq.) Yunck. Accepted L TRO
Piper repens Poir. Unresolved L WCSP (in review)
Piper reptabundum C.DC. Accepted M WCSP (in review)
Piper resacanum Trel. Accepted M TRO
Piper resalutatum Trel. Accepted M TRO
Piper resatum Trel. Synonym M TRO
Piper restio Trel. Accepted M TRO
Piper restis Trel. Unresolved L TRO
Piper restrictum Trel. Accepted M TRO
Piper retalhuleuense Trel. & Standl. Accepted M TRO
Piper reticulatum L. Accepted M WCSP (in review)
Piper reticulatum Vell. Misapplied L WCSP (in review)
Piper reticulatum var. reticulatum Synonym L TRO
Piper reticulosum Opiz Synonym L TRO
Piper retrofractum Vahl Accepted L TRO
Piper retropilosum C. DC. Accepted M TRO
Piper retropuberulum Yunck. Synonym M TRO
Piper retusum L.f. Synonym M WCSP (in review)
Piper reventazonis Trel. Synonym M TRO
Piper revolutum Rich. ex Kunth Unresolved L WCSP (in review)
Piper rhinostachyum Trel. Accepted M TRO
Piper rhizocaule Trel. Unresolved L WCSP (in review)
Piper rhodocarpum Trel. Unresolved L WCSP (in review)
Piper rhododendrifolium Kunth Accepted M WCSP (in review)
Piper rhodostachyum Trel. Synonym M TRO
Piper rhombeum (Ruiz & Pav.) Vahl Synonym M WCSP (in review)
Piper rhomboidale Dum.Cours. Unresolved L WCSP (in review)
Piper rhombophyllum C.DC. Unresolved L WCSP (in review)
Piper rhyncholepsis C.DC. Unresolved L WCSP (in review)
Piper rhynchostachyum (Miq.) C. DC. Synonym L TRO
Piper rhytidocarpum Hook. f. Accepted M TRO
Piper ribesioides Wall. Unresolved L WCSP (in review)
Piper richardianum C.DC. Unresolved L WCSP (in review)
Piper richardiifolium (Kunth) Kunth ex Steud. Accepted M WCSP (in review)
Piper richardiifolium Kunth Unresolved L TRO
Piper ridleyi C.DC. Unresolved L WCSP (in review)
Piper riedelii C.DC. Unresolved L WCSP (in review)
Piper rigidum C.DC. Unresolved L WCSP (in review)
Piper riitosense Trel. & Yunck. Accepted M WCSP (in review)
Piper rinconense Trel. Accepted M WCSP (in review)
Piper rindjanense C.DC. Unresolved L WCSP (in review)
Piper rindu C.DC. Unresolved L WCSP (in review)
Piper rio-docense E.F.Guim. & Carv.-Silva Unresolved L WCSP (in review)
Piper rio-zulianum Trel. & Yunck. Accepted M WCSP (in review)
Piper riocajambrense Trel. & Yunck. Accepted M TRO
Piper riocauchosanum Yunck. Accepted M TRO
Piper riochiadoense Trel. & Yunck. Accepted M TRO
Piper rioense Yunck. Accepted M WCSP (in review)
Piper riojanum Trel. Accepted M TRO
Piper riomarguanum Trel. & Yunck. Accepted M TRO
Piper rionechianum Yunck. Accepted M TRO
Piper riotintasense Yunck. Synonym M TRO
Piper ripagaudens Yunck. Unresolved L WCSP (in review)
Piper riparense C. DC. Synonym M TRO
Piper riparium Kunth Synonym M WCSP (in review)
Piper ripense C. DC. Synonym M TRO
Piper ripicola C. DC. Synonym M TRO
Piper rivi-vetusti Trel. Synonym M WCSP (in review)
Piper rivialbi Trel. & Yunck. Synonym M TRO
Piper rivinoides Kunth Accepted M TRO
Piper rivinoides f. magnifolium Yunck. Accepted L TRO
Piper rivulare C.DC. Unresolved L WCSP (in review)
Piper robinsonii C.DC. Unresolved L WCSP (in review)
Piper roblalense Yunck. Accepted M TRO
Piper robleanum Trel. & Yunck. Accepted M TRO
Piper robustipedunculum Yunck. Accepted M WCSP (in review)
Piper rodatzii K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper roemeri C.DC. Unresolved L WCSP (in review)
Piper rogaguanum Trel. Accepted M TRO
Piper rohrii C.DC. Accepted M WCSP (in review)
Piper rojasii C.DC. Unresolved L WCSP (in review)
Piper rollingo Schult. Unresolved L WCSP (in review)
Piper romboutsii Yunck. Synonym L TRO
Piper ronaldii Steyerm. Accepted M WCSP (in review)
Piper roqueanum Trel. Accepted M TRO
Piper rosei C. DC. Accepted M TRO
Piper roseovenulosum Trel. Synonym M WCSP (in review)
Piper rostratum Roxb. Unresolved L WCSP (in review)
Piper rothianum F.M.Bailey Unresolved L WCSP (in review)
Piper rothschuhii C. DC. Synonym M TRO
Piper rotundatum (Kunth) Poir. Synonym M WCSP (in review)
Piper rotundibaccum Trel. Synonym M WCSP (in review)
Piper rotundibaccum var. fraijanesanum Trel. Synonym L WCSP (in review)
Piper rotundifolium L. Synonym L WCSP (in review)
Piper rotundistigmum C.DC. Unresolved L WCSP (in review)
Piper rotundistipulum Trel. & Yunck. Synonym M TRO
Piper rotundum Noronha Unresolved L WCSP (in review)
Piper rovirosae C.DC. Unresolved L WCSP (in review)
Piper roxburghianum Schult. Unresolved L WCSP (in review)
Piper roxburghii (Miq.) J.Presl Unresolved L WCSP (in review)
Piper rubellum Haw. ex Spreng. Unresolved L WCSP (in review)
Piper rubescens C.DC. Synonym M WCSP (in review)
Piper rubiginosum Trel. Accepted M TRO
Piper rubioides (Kunth) Poir. Synonym M WCSP (in review)
Piper rubramentum C.DC. Unresolved L WCSP (in review)
Piper rubribaccum Trel. Accepted M TRO
Piper rubricaule Nees Synonym M WCSP (in review)
Piper rubripes Trel. Synonym M WCSP (in review)
Piper rubripunctulatum C.DC. Unresolved L WCSP (in review)
Piper rubroglandulosum Chaveer. & Mokkamul Synonym M WCSP (in review)
Piper rubronodosum G.Nicholson Unresolved L WCSP (in review)
Piper rubrospadix Trel. Synonym M TRO
Piper rubrovenosum Rodigas Unresolved L WCSP (in review)
Piper rubrum C. DC. Accepted M TRO
Piper rude Kunth Accepted M TRO
Piper rudgeanum (Miq.) C. DC. Accepted L TRO
Piper rueckeri K.Schum. Unresolved L WCSP (in review)
Piper rufescens C. DC. Synonym M TRO
Piper rufescentibaccum C.DC. Unresolved L WCSP (in review)
Piper rufibracteum C.DC. Unresolved L WCSP (in review)
Piper ruficaule D.Parodi Unresolved L WCSP (in review)
Piper rufinerbe Opiz Unresolved L TRO
Piper rufinerve Opiz Unresolved L WCSP (in review)
Piper rufipilum Yunck. Accepted M WCSP (in review)
Piper rufispicum C.DC. Unresolved L WCSP (in review)
Piper rufum C.DC. Unresolved L WCSP (in review)
Piper rugosibaccum Trel. Accepted M TRO
Piper rugosifolium Trel. Synonym M TRO
Piper rugosilimbum Trel. Accepted M TRO
Piper rugosum Lam. Accepted M TRO
Piper rugulosum C. DC. Accepted M TRO
Piper ruizianum D.Dietr. Synonym M WCSP (in review)
Piper rumicifolium (Miq.) C. DC. Accepted L TRO
Piper rumphii (Miq.) C. DC. Accepted L TRO
Piper rupestre (Kunth) Poir. Synonym M WCSP (in review)
Piper rupicola C.DC. Unresolved L WCSP (in review)
Piper rupigaudens C.DC. Unresolved L WCSP (in review)
Piper rupununianum Trel. & Yunck. Accepted M WCSP (in review)
Piper rurrenbaqueanum Trel. Synonym M TRO
Piper rusbyi C. DC. Accepted M TRO
Piper ruscifolium (Kunth) Poir. Synonym M TRO
Piper rusticum Trel. & Yunck. Accepted M TRO
Piper sabaletasanum Trel. & Yunck. Accepted M TRO
Piper sabanaense Yunck. Accepted M WCSP (in review)
Piper sabanillanum Trel. Synonym M TRO
Piper sablanum Quisumb. Unresolved L WCSP (in review)
Piper sacchamatesense Yunck. Accepted M TRO
Piper sacleuxii C.DC. Unresolved L WCSP (in review)
Piper sagax Trel. Synonym M WCSP (in review)
Piper sagittifer Trel. Accepted M TRO
Piper sagittifolium C. DC. Accepted M TRO
Piper sagotii C. DC. Synonym M TRO
Piper sagranum C.DC. Unresolved L WCSP (in review)
Piper saigonense C. DC. Synonym M TRO
Piper salamancanum Trel. Synonym M TRO
Piper saldanhae Yunck. Accepted M WCSP (in review)
Piper salentoi Trel. & Yunck. Accepted M TRO
Piper salgaranum Trel. & Yunck. Accepted M TRO
Piper salicariaefolium Kunth Unresolved L TRO
Piper salicariaefolium var. lehmannianum (Miq.) C. DC. Synonym L TRO
Piper salicariifolium Kunth Unresolved L WCSP (in review)
Piper salicifolium Vahl Accepted M TRO
Piper salicinum Opiz Unresolved L WCSP (in review)
Piper salicioides Yunck. Unresolved L WCSP (in review)
Piper salignum (Kunth) Poir. Synonym M WCSP (in review)
Piper salinasanum C.DC. Synonym M WCSP (in review)
Piper salinasanum var. parvifolium C. DC. Synonym L TRO
Piper salinasanum var. subscabrifolium C. DC. Synonym L TRO
Piper salinasanum var. verbenanum (C. DC.) C. DC. Synonym L TRO
Piper saloyanum Trel. & Yunck. Accepted M TRO
Piper salticola Ridl. Unresolved L WCSP (in review)
Piper saltuum C.DC. Synonym M WCSP (in review)
Piper salutatrix Trel. Synonym M WCSP (in review)
Piper salviifolium (Miq.) C. DC. Synonym L TRO
Piper salzmannii C.DC. Unresolved L WCSP (in review)
Piper samanense Urb. Unresolved L WCSP (in review)
Piper samaranum C.DC. Unresolved L WCSP (in review)
Piper sambuanum C. DC. Accepted M TRO
Piper sampaioi Yunck. Accepted M TRO
Piper san-joseanum C.DC. Synonym M WCSP (in review)
Piper san-joseanum var. aristolochiaefolium Trel. Synonym L WCSP (in review)
Piper san-joseanum var. chiriquinum Trel. Synonym L WCSP (in review)
Piper san-joseanum var. kobense Trel. Synonym L WCSP (in review)
Piper san-joseanum var. minor Trel. Synonym L WCSP (in review)
Piper san-joseanum var. panamanum Trel. Synonym L WCSP (in review)
Piper san-joseanum var. remediosense Trel. Synonym L WCSP (in review)
Piper san-joseanum var. tabogense Trel. Synonym L WCSP (in review)
Piper san-luisense Trel. Accepted M WCSP (in review)
Piper san-vicentense Trel. & Yunck. Accepted M WCSP (in review)
Piper sanandresense Trel. & Yunck. Accepted M TRO
Piper sancarlosianum C.DC. Synonym M WCSP (in review)
Piper sancristobalanum Trel. Synonym M TRO
Piper sanctae-crucis C. DC. Synonym M TRO
Piper sancti-felicis Trel. Accepted M WCSP (in review)
Piper sanctum (Miq.) Schltdl. ex C.DC. Accepted M WCSP (in review)
Piper sandaloense Trel. Synonym M TRO
Piper sandemanii Yunck. Synonym M TRO
Piper sandianum C. DC. Accepted M TRO
Piper sangabrielanum Trel. Unresolved L WCSP (in review)
Piper sangorianum C. DC. Accepted M TRO
Piper sanguineispicum Trel. Synonym M TRO
Piper sanjuananum Trel. Unresolved L TRO
Piper sanlorenzanum Trel. Synonym M TRO
Piper sanmarcosanum C. DC. Unresolved L TRO
Piper sanmartinense Trel. & Yunck. Accepted M TRO
Piper sanmiguelense Trel. & Yunck. Accepted M TRO
Piper sannicolasense Trel. Accepted M TRO
Piper sanrafaelense Trel. Synonym M TRO
Piper sanramonense Trel. Accepted M TRO
Piper sanroqueanum Trel. Accepted M TRO
Piper santa-martanum C.DC. Synonym M WCSP (in review)
Piper santabarbaranum Trel. Accepted M TRO
Piper santae-clarae Standl. & Steyerm. Accepted M TRO
Piper santaremense C.DC. Unresolved L WCSP (in review)
Piper santaritanum Trel. Accepted M TRO
Piper santarosanum C. DC. Synonym M TRO
Piper santiaganum Trel. Synonym M TRO
Piper santo-domingense Trel. Unresolved L WCSP (in review)
Piper santosanum C.DC. Unresolved L WCSP (in review)
Piper sapitense C.DC. Unresolved L WCSP (in review)
Piper sapotoanum Trel. Accepted M TRO
Piper sapotoyacuense Trel. Accepted M TRO
Piper saramaccanum Yunck. Synonym M TRO
Piper sarapiquinum C.DC. Synonym M WCSP (in review)
Piper sararense Trel. & Yunck. Accepted M TRO
Piper sarasinorum C.DC. Unresolved L WCSP (in review)
Piper sarawakanum C.DC. Unresolved L WCSP (in review)
Piper sarcopodum C.DC. Unresolved L WCSP (in review)
Piper sarcostylum C.DC. Unresolved L WCSP (in review)
Piper sarmentosum Roxb. Accepted M TRO
Piper sasaimanum Yunck. Synonym M TRO
Piper satisfactum Trel. Accepted M TRO
Piper saururoides Desv. ex Ham. Synonym L WCSP (in review)
Piper saururus Burm. Unresolved L WCSP (in review)
Piper savagii C. DC. Synonym M TRO
Piper savanense C. DC. Accepted M TRO
Piper saxatile Wall. Unresolved L WCSP (in review)
Piper saxatilis Wall. Unresolved L WCSP (in review)
Piper saxicola C.DC. Unresolved L WCSP (in review)
Piper saxicolum Vahl Unresolved L WCSP (in review)
Piper scabiosifolium Trel. Accepted M TRO
Piper scabrellum Yunck. Accepted M WCSP (in review)
Piper scabricaule Trel. Synonym M TRO
Piper scabridulicaule Trel. Accepted M TRO
Piper scabridulilimbum Trel. & Yunck. Accepted M TRO
Piper scabridum Haenke Unresolved L WCSP (in review)
Piper scabrifolium Hook. & Arn. Unresolved L WCSP (in review)
Piper scabrilimbum C.DC. ex A.Schroed. Synonym M WCSP (in review)
Piper scabrilimbum C. DC. Synonym M TRO
Piper scabriseptum Trel. Synonym M WCSP (in review)
Piper scabriseptum var. reductum Trel. Synonym L WCSP (in review)
Piper scabriusculum A.Dietr. Unresolved L WCSP (in review)
Piper scabrum Willd. ex Kunth [Illegitimate] Synonym M WCSP (in review)
Piper scabrum Sw. [Illegitimate] Synonym M WCSP (in review)
Piper scalariforme Trel. Accepted M TRO
Piper scalarispicum Trel. Accepted M WCSP (in review)
Piper scalpens Trel. Synonym M WCSP (in review)
Piper scandens Sw. Synonym M TRO
Piper scandenticaule Yunck. Accepted M TRO
Piper scansum Trel. & Yunck. Accepted M TRO
Piper scapispicum Trel. Synonym M TRO
Piper schachii (Miq.) C. DC. Accepted L TRO
Piper schenckii C.DC. Accepted M WCSP (in review)
Piper schiedeanum Steud. Accepted M WCSP (in review)
Piper schippianum Trel. Accepted M WCSP (in review)
Piper schippianum Trel. & Standl. Unresolved L TRO
Piper schizonephos C.DC. Unresolved L WCSP (in review)
Piper schlechtendahlianum (Miq.) C. DC. Accepted M TRO
Piper schlechtendalii Steud. Accepted M TRO
Piper schlechteri C.DC. Unresolved L WCSP (in review)
Piper schlimii C.DC. Accepted M WCSP (in review)
Piper schmidtii Hook.f. Unresolved L WCSP (in review)
Piper schottii (Miq.) C. DC. Accepted L TRO
Piper schottii var. schottii Synonym L TRO
Piper schultesii Yunck. Synonym M TRO
Piper schumannii C.DC. Unresolved L WCSP (in review)
Piper schunkeanum Trel. Accepted M TRO
Piper schuppii A.H. Gentry Accepted M TRO
Piper schwackei C. DC. Accepted M TRO
Piper sciaphilum C. DC. Accepted M TRO
Piper scintillans Trel. Synonym M TRO
Piper sclerocladum C. DC. Accepted M TRO
Piper scleromyelum C. DC. Synonym L TRO
Piper sclerophloeum C.DC. Accepted M WCSP (in review)
Piper sclerophloeum var. scandens C.DC. Synonym L WCSP (in review)
Piper scobinifolium Yunck. Unresolved L WCSP (in review)
Piper scopulorum Kunth Unresolved L WCSP (in review)
Piper scortechinii C.DC. Unresolved L WCSP (in review)
Piper scutaespicum Trel. Accepted M TRO
Piper scutatum Willd. ex A.Dietr. Unresolved L WCSP (in review)
Piper scutellaefolium (Ruiz & Pav.) Vahl Synonym M TRO
Piper scutellatum (Ruiz & Pav.) Pers. Synonym M TRO
Piper scutellifolium Vahl Unresolved L WCSP (in review)
Piper scutifolium Yunck. Accepted M TRO
Piper scutilimbum C. DC. Accepted M TRO
Piper scutiphyllum Ham. Synonym M TRO
Piper scutispicum Trel. Unresolved L WCSP (in review)
Piper scuttelliferum C. DC. Unresolved L TRO
Piper sebastianopolitense C.DC. Unresolved L WCSP (in review)
Piper sebastianum Yunck. Accepted M TRO
Piper secundum Ruiz & Pav. Accepted M TRO
Piper seducentifolium Trel. Synonym M WCSP (in review)
Piper seductum Trel. Synonym M WCSP (in review)
Piper seemannianum C.DC. Unresolved L WCSP (in review)
Piper segoviarum Standl. & L.O.Williams Synonym M WCSP (in review)
Piper seitzii C.DC. Unresolved L WCSP (in review)
Piper selangorense C.DC. Unresolved L WCSP (in review)
Piper sellertianum Trel. Accepted M TRO
Piper sellertianum var. sellertianum Synonym L TRO
Piper selloi C.DC. Unresolved L WCSP (in review)
Piper selloi var. latilimbum C.DC. Unresolved L WCSP (in review)
Piper sellowianum Kunth Unresolved L WCSP (in review)
Piper semangkoanum C.DC. Unresolved L WCSP (in review)
Piper semicordulatum Trel. Accepted M TRO
Piper semicrudum Trel. Accepted M TRO
Piper semiimmersum C. DC. Accepted M TRO
Piper semimetrale C. DC. Accepted M TRO
Piper seminervosum Trel. & Yunck. Accepted M TRO
Piper seminitidulum Trel. Accepted M TRO
Piper semiplenum Trel. Accepted M TRO
Piper semitarium Trel. & Yunck. Accepted M TRO
Piper semivolubile C.DC. Unresolved L WCSP (in review)
Piper semperflorens C. DC. Accepted M TRO
Piper sempervirens (Trel.) Lundell Accepted L TRO
Piper senporeiense Yamam. Accepted M TRO
Piper sepicola C. DC. Synonym M TRO
Piper sepium C. DC. Synonym L TRO
Piper sepium var. guacimonum C. DC. Synonym L TRO
Piper septemnerve (Ruiz & Pav.) Vahl Synonym M TRO
Piper septuplinervium (Miq.) C. DC. Accepted L TRO
Piper septuplinervium var. subpubinervium Yunck. Synonym L TRO
Piper sericeonervosum Trel. Accepted M TRO
Piper serotinum Trel. Accepted M TRO
Piper serpavillanum Trel. Accepted M TRO
Piper serpens Sw. Synonym M WCSP (in review)
Piper serpentarioides Nees ex Miq. Unresolved L WCSP (in review)
Piper serpyllifolium Vahl Unresolved L WCSP (in review)
Piper serrulatum Yunck. Accepted M TRO
Piper sesquimetrale Trel. Synonym M TRO
Piper sessilifolium Willd. ex Schult. Unresolved L WCSP (in review)
Piper setebarraense E.F.Guim. & L.H.P.Costa Unresolved L WCSP (in review)
Piper setigerum Trel. Accepted M TRO
Piper setosum Trel. & Yunck. Accepted M TRO
Piper setulosum Trel. Accepted M TRO
Piper siassiense C.DC. Unresolved L WCSP (in review)
Piper sibulanum C.DC. Unresolved L WCSP (in review)
Piper sibunense Trel. Synonym M WCSP (in review)
Piper sidaefolium Link & Otto Synonym M TRO
Piper sidipilum Trel. Synonym L TRO
Piper sieberi (Miq.) C.DC. Synonym L WCSP (in review)
Piper sierra-aroense Steyerm. Accepted M WCSP (in review)
Piper sievekingii C.DC. Unresolved L WCSP (in review)
Piper signatum Trel. Synonym M TRO
Piper siguatepequense Trel. Synonym L WCSP (in review)
Piper siguatepequense var. subrhombifolium Trel. Synonym L WCSP (in review)
Piper sikkimense C.DC. Unresolved L WCSP (in review)
Piper silencioi Trel. Synonym M TRO
Piper silentvalleyense Ravindran, M.K.Nair & Asokan Nair Unresolved L WCSP (in review)
Piper silhouettanum J.Gerlach Unresolved L WCSP (in review)
Piper silvaense Yunck. Accepted M TRO
Piper silvanorum Trel. Synonym M TRO
Piper silvarum C. DC. Accepted M TRO
Piper silvestre Vell. Unresolved L WCSP (in review)
Piper silvicola C.DC. Synonym M WCSP (in review)
Piper silvigaudens Yunck. Accepted M WCSP (in review)
Piper silvimontanum C.DC. Unresolved L WCSP (in review)
Piper silvioberrans Trel. Synonym M TRO
Piper silvivagum C. DC. Accepted M TRO
Piper silvivagum var. peruvianum C. DC. Synonym L TRO
Piper simile Quisumb. Unresolved L WCSP (in review)
Piper simplex D.Dietr. Unresolved L WCSP (in review)
Piper simplex Endl. Unresolved L WCSP (in review)
Piper simulans Trel. Synonym L WCSP (in review)
Piper simulhabitans Trel. Synonym M TRO
Piper sinense (Champ. ex Benth.) C. DC. Synonym L TRO
Piper singkojan C.DC. ex Koord. Unresolved L WCSP (in review)
Piper singulare C. DC. Synonym L TRO
Piper sintenense Hatus. Accepted M TRO
Piper sinuatifolium Trel. Synonym M TRO
Piper sinuatispicum Trel. Unresolved L WCSP (in review)
Piper sinuclausum Trel. Accepted M TRO
Piper sinugaudens C. DC. Accepted M TRO
Piper sinuosirameum Trel. Unresolved L WCSP (in review)
Piper sipenanum Trel. & Yunck. Synonym M TRO
Piper siquirresense Trel. Synonym M WCSP (in review)
Piper siriboa L. Unresolved L WCSP (in review)
Piper siriboa G.Forst. Unresolved L WCSP (in review)
Piper siriboa B.Heyne Unresolved L WCSP (in review)
Piper sirium C.DC. Unresolved L WCSP (in review)
Piper skutchii Trel. & Yunck. Accepted M TRO
Piper smilacifolium Kunth Synonym M WCSP (in review)
Piper sneidernii Yunck. Accepted M TRO
Piper snethlagei Yunck. Accepted M TRO
Piper sociorum Trel. & Yunck. Accepted M TRO
Piper sodiroi C. DC. Accepted M TRO
Piper sodiroi var. fuscum Sodiro Synonym L TRO
Piper sodiroi var. incanum Sodiro Synonym L TRO
Piper sogerense S.Moore Unresolved L WCSP (in review)
Piper sogerianum C.DC. Unresolved L WCSP (in review)
Piper soledadense Trel. Accepted M TRO
Piper soledadense var. soledadense Synonym L TRO
Piper solmsianum C.DC. Accepted M WCSP (in review)
Piper solmsianum var. hilarianum (Miq.) Yunck. Accepted L TRO
Piper solutidrupum Yunck. Accepted M WCSP (in review)
Piper sonadense C.DC. Unresolved L WCSP (in review)
Piper sonsonatense Standl. & S.Calderon Unresolved L WCSP (in review)
Piper soricicaudatum Trel. Accepted M TRO
Piper sororium (Miq.) C.DC. Accepted M WCSP (in review)
Piper sorsogonum C.DC. Unresolved L WCSP (in review)
Piper sotae Yunck. Unresolved L WCSP (in review)
Piper sotai Yunck. Accepted M TRO
Piper spathelliferum Quisumb. Unresolved L WCSP (in review)
Piper spathulatum D.Dietr. Unresolved L WCSP (in review)
Piper speciosum Kunth Synonym M WCSP (in review)
Piper speculatoris Trel. Unresolved L WCSP (in review)
Piper speratum Trel. Synonym M WCSP (in review)
Piper sperdinum C. DC. Synonym M TRO
Piper sphaerocarpum (Griseb.) C.DC. ex C.Wright Unresolved L WCSP (in review)
Piper sphaeroides C. DC. Accepted M TRO
Piper sphaerostachyum C.DC. Unresolved L WCSP (in review)
Piper spicilongum Trel. Synonym M WCSP (in review)
Piper spirei C. DC. Synonym L TRO
Piper spirei var. pilosius C. DC. Synonym L TRO
Piper spoliatum Trel. & Yunck. Synonym M TRO
Piper sprengelianum C. DC. Accepted M TRO
Piper spruceanum C. DC. Accepted M TRO
Piper spurium Link Synonym M TRO
Piper squalidum Trel. Synonym M WCSP (in review)
Piper squalipelliculum Trel. Synonym M WCSP (in review)
Piper squamuliferum C.DC. Unresolved L WCSP (in review)
Piper squamulosum C. DC. Accepted M TRO
Piper stamineum (Miq.) C. DC. Synonym L TRO
Piper staminodiferum C.DC. Unresolved L WCSP (in review)
Piper standleyi Trel. Accepted M TRO
Piper staphyle Roem. & Schult. Unresolved L WCSP (in review)
Piper statarium Trel. & Yunck. Synonym M WCSP (in review)
Piper statum Trel. & Yunck. Synonym M TRO
Piper stehleorum Trel. ex Stehlé Unresolved L WCSP (in review)
Piper steinbachii Yunck. Accepted M TRO
Piper stellatum Vell. Unresolved L WCSP (in review)
Piper stellatum Sw. Unresolved L WCSP (in review)
Piper stellipilum (Miq.) C. DC. Accepted L TRO
Piper stenocarpum C.DC. Unresolved L WCSP (in review)
Piper stenocladophorum Trel. Unresolved L WCSP (in review)
Piper stenocladum C.DC. Synonym M WCSP (in review)
Piper stenophyllum C.DC. Unresolved L WCSP (in review)
Piper stenophyllum Voigt Unresolved L WCSP (in review)
Piper stenopodum C.DC. Unresolved L WCSP (in review)
Piper stenostachys C. DC. Accepted M TRO
Piper sternii Yunck. Synonym M TRO
Piper stevensii Trel. Accepted M TRO
Piper stevensonii Trel. Unresolved L WCSP (in review)
Piper steyermarkii Yunck. Accepted M WCSP (in review)
Piper stileferum Yunck. Accepted M TRO
Piper stillans Trel. & Standl. Synonym M WCSP (in review)
Piper stipitiforme C.C. Chang ex Y.Q. Tseng Accepted M TRO
Piper stipulaceum Opiz Accepted M TRO
Piper stipulare A.C.Sm. Unresolved L WCSP (in review)
Piper stipulosum Sodiro Accepted M TRO
Piper stoloniferum Poir. Unresolved L WCSP (in review)
Piper stomachicum C. DC. Accepted M TRO
Piper storkii Trel. Accepted M TRO
Piper striaticaule Yunck. Unresolved L WCSP (in review)
Piper striatifolium Yunck. Accepted M TRO
Piper striatinervosum Trel. Synonym M TRO
Piper striatipetiolum Yunck. Accepted M TRO
Piper striatum (Ruiz & Pav.) Vahl Synonym M WCSP (in review)
Piper strictifolium D.Monteiro & E.F.Guim. Unresolved L WCSP (in review)
Piper strigillosicaule Trel. Accepted M TRO
Piper strigillosum Trel. Accepted M TRO
Piper strigosum Trel. Accepted M TRO
Piper stuebelii Trel. Accepted M TRO
Piper stupposum A. Dietr. Accepted M TRO
Piper stylosum Miq. Unresolved L WCSP (in review)
Piper suaveolens (Ham.) Desf. Unresolved L WCSP (in review)
Piper suaveolens C.DC. Unresolved L WCSP (in review)
Piper subaduncum Yunck. Accepted M TRO
Piper subaequale (C. Presl) C. DC. Synonym L TRO
Piper subaequilaterum Trel. Synonym M WCSP (in review)
Piper subaerophilum C.DC. Unresolved L WCSP (in review)
Piper subalbicans C.DC. Unresolved L WCSP (in review)
Piper subalpinum Yunck. Accepted M WCSP (in review)
Piper subandina Trel. Accepted M TRO
Piper subandinum C. DC. Accepted M TRO
Piper subarborescens C. DC. Synonym M TRO
Piper subasperatum Trel. Synonym M WCSP (in review)
Piper subaspericaule C. DC. Synonym M TRO
Piper subasperifolium Yunck. Unresolved L WCSP (in review)
Piper subauriculatum (Miq.) C. DC. Synonym L TRO
Piper subbrunneispicum Yunck. Synonym M TRO
Piper subbullatum K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper subcaniramum C.DC. Unresolved L WCSP (in review)
Piper subcaudatum Trel. Accepted M TRO
Piper subcaudatum var. maternale (Trel.) Yunck. Synonym L TRO
Piper subciliatum C. DC. Accepted M TRO
Piper subcinereum C. DC. Accepted M TRO
Piper subcinereum var. subcinereum Synonym L TRO
Piper subcitrifolium C.DC. Synonym M WCSP (in review)
Piper subconcinnum C. DC. Accepted M TRO
Piper subcordatum (Miq.) C. DC. Accepted L TRO
Piper subcordulatum Trel. Accepted M TRO
Piper subcrassifolium Yunck. Synonym M WCSP (in review)
Piper subcrenulatum C. DC. Accepted M TRO
Piper subdilatatum Trel. Synonym M TRO
Piper subdivaricatum Trel. Synonym M TRO
Piper subduidaense Yunck. Accepted M WCSP (in review)
Piper subdurum Trel. Synonym M TRO
Piper subeburneum Trel. & Standl. Accepted M TRO
Piper subepunctatum C.DC. Unresolved L WCSP (in review)
Piper suberythrocarpum C. DC. Synonym M TRO
Piper subfalcatum Yunck. Accepted M TRO
Piper subflavicans Trel. Accepted M TRO
Piper subflavirameum C.DC. Unresolved L WCSP (in review)
Piper subflavispicum C. DC. Accepted M TRO
Piper subflavum C. DC. Accepted M TRO
Piper subflavum var. espejuelanum (C. DC.) Trel. & Yunck. Accepted L TRO
Piper subfragile C.DC. Unresolved L WCSP (in review)
Piper subfrutescens Trel. & Yunck. Accepted M TRO
Piper subfuscum C.DC. Synonym M WCSP (in review)
Piper subglabribracteatum C. DC. Accepted M TRO
Piper subglabrifolium C. DC. Accepted M TRO
Piper subglabrum C.DC. Unresolved L WCSP (in review)
Piper subglaucescens C.DC. Synonym M WCSP (in review)
Piper subglaucum C.DC. Unresolved L WCSP (in review)
Piper subgrande Ridl. Unresolved L WCSP (in review)
Piper subhirsutum Trel. Synonym M TRO
Piper subhirsutum var. tomentosicaule Trel. Synonym L TRO
Piper subinense Trel. Unresolved L TRO
Piper sublaevifolium Trel. Synonym M TRO
Piper sublepidotum Yunck. Accepted M TRO
Piper sublignosum Yunck. Accepted M WCSP (in review)
Piper sublineatum Kuntze Synonym M TRO
Piper submelanostictum C.DC. Synonym M WCSP (in review)
Piper submelanostictum var. amelanostictum Yunck. Synonym L WCSP (in review)
Piper submolle Trel. Synonym M WCSP (in review)
Piper submultinerve C. DC. Accepted M TRO
Piper submultinerve var. submultinerve Synonym L TRO
Piper submultiplinerve C. DC. Synonym M TRO
Piper subnitidifolium Yunck. Accepted M TRO
Piper subnitidum C. DC. Accepted M TRO
Piper subnudibracteum C.DC. Synonym L WCSP (in review)
Piper subnudilimbum C.DC. Unresolved L WCSP (in review)
Piper subnudispicum Trel. Synonym L TRO
Piper subpanduriforme C.DC. Unresolved L WCSP (in review)
Piper subpatens Trel. Accepted M TRO
Piper subpedale Trel. & Yunck. Accepted M TRO
Piper subpedicellatum Van Heurck & Müll.Arg. Unresolved L WCSP (in review)
Piper subpeltatum Willd. Synonym M TRO
Piper subpeltatum var. sidaefolium (Link & Otto) C. DC. Unresolved L TRO
Piper subpenninerve Ridl. Unresolved L WCSP (in review)
Piper subprostratum C.DC. Unresolved L WCSP (in review)
Piper subpuberulum Trel. Unresolved L WCSP (in review)
Piper subpubibracteum C.DC. Unresolved L WCSP (in review)
Piper subpurpureum C.DC. Unresolved L WCSP (in review)
Piper subquadratum Trel. Synonym M TRO
Piper subquinquenerve Trel. Accepted M TRO
Piper subrectinerve C.DC. Unresolved L WCSP (in review)
Piper subrepens Trel. Accepted M TRO
Piper subrigidilimbum C.DC. Unresolved L WCSP (in review)
Piper subrotundum Haw. Synonym M TRO
Piper subrubrispicum C.DC. Unresolved L WCSP (in review)
Piper subrugosum Yunck. Accepted M WCSP (in review)
Piper subscabridum C.DC. Unresolved L WCSP (in review)
Piper subscandens C.DC. Unresolved L WCSP (in review)
Piper subscutatum (Miq.) C. DC. Accepted L TRO
Piper subseptemnervium (Miq.) C. DC. Accepted L TRO
Piper subsericeum Trel. Synonym M WCSP (in review)
Piper subsessile Trel. Synonym L TRO
Piper subsessilifolium C.DC. Accepted M WCSP (in review)
Piper subsessililimbum C.DC. Unresolved L WCSP (in review)
Piper subsilvestre C. DC. Accepted M TRO
Piper subsilvulanum C. DC. Accepted M TRO
Piper substenocarpum C. DC. Synonym M TRO
Piper substilosum Yunck. Accepted M TRO
Piper subtextum Trel. Synonym M TRO
Piper subtomentosum Trel. & Yunck. Accepted M TRO
Piper subtrinerve Trel. Synonym M TRO
Piper subtrinerve var. harveyanum Trel. Synonym L TRO
Piper subtropicum C. DC. Synonym M TRO
Piper subtropicum var. pachystachyum C. DC. Synonym L TRO
Piper subulatum C. DC. Accepted M TRO
Piper subvariabile Trel. Synonym M WCSP (in review)
Piper subvirosum C.DC. Unresolved L WCSP (in review)
Piper subzhorquinense C. DC. ex Trel. Synonym M TRO
Piper sucreense Trel. & Yunck. Accepted M TRO
Piper suffrutescens C.DC. Unresolved L WCSP (in review)
Piper suffruticosum Trel. Accepted M TRO
Piper suipigua Buch.-Ham. ex D. Don Accepted M TRO
Piper sulcatum Blume Unresolved L WCSP (in review)
Piper sulcatum Buch.-Ham. ex D.Don Unresolved L WCSP (in review)
Piper sulcatum Sodiro Unresolved L WCSP (in review)
Piper sulcinerve Urb. Unresolved L WCSP (in review)
Piper sulcinervosum Trel. Synonym M TRO
Piper sumatranum (Miq.) C. DC. Accepted L TRO
Piper sumideranum Trel. Synonym M TRO
Piper sumpi Trel. Accepted M TRO
Piper sundaicum Blume Unresolved L WCSP (in review)
Piper supernum Trel. & Yunck. Accepted M TRO
Piper suratanum Trel. & Yunck. Accepted M TRO
Piper surinamense C.DC. Synonym M WCSP (in review)
Piper surubresanum Trel. Synonym M WCSP (in review)
Piper suspectum Trel. Synonym M TRO
Piper svidaefolium Trel. Synonym M TRO
Piper swartzianum (Miq.) C. DC. Accepted L TRO
Piper swartzii C.DC. Unresolved L WCSP (in review)
Piper sylvaticum Roxb. Accepted M TRO
Piper sylvestre Lam. Accepted M TRO
Piper syringifolium Balb. ex Kunth [Illegitimate] Synonym L WCSP (in review)
Piper szemaoense C. DC. Synonym M TRO
Piper tabanicidum Trel. Synonym M WCSP (in review)
Piper tabasaranum Trel. Synonym M TRO
Piper tabernillanum Trel. Synonym M TRO
Piper tabernillanum var. anconense Trel. Synonym L TRO
Piper tabinense Trel. Accepted M TRO
Piper tablazosense C.DC. Unresolved L WCSP (in review)
Piper taboganum C.DC. Synonym M WCSP (in review)
Piper tacamahaca Trel. Synonym M TRO
Piper tacananum Trel. & Standl. Accepted M TRO
Piper tacaresense Trel. Synonym M WCSP (in review)
Piper tacariguense Steyerm. Accepted M WCSP (in review)
Piper tachiranum Yunck. Accepted M WCSP (in review)
Piper tacticanum Trel. & Standl. Accepted M WCSP (in review)
Piper taiwanense Lin & Lu Accepted M TRO
Piper tajumulcoanum Trel. & Standl. Accepted M TRO
Piper talamancanum Trel. Synonym M WCSP (in review)
Piper talbotii C.DC. Unresolved L WCSP (in review)
Piper talinifolium (Kunth) Poir. Synonym M TRO
Piper tamayoanum Steyerm. Accepted M WCSP (in review)
Piper tapantiense Trel. Synonym M TRO
Piper tapenbeckii K.Schum. & Lauterb. ex C.DC. Unresolved L WCSP (in review)
Piper taperanum Yunck. Accepted M WCSP (in review)
Piper taperinhanum Yunck. Accepted M TRO
Piper tapianum Trel. Synonym M TRO
Piper taquetii C.DC. Unresolved L WCSP (in review)
Piper tarapotianum C. DC. Synonym M TRO
Piper tardans Trel. Synonym M WCSP (in review)
Piper tardum Trel. Synonym M TRO
Piper tarrazuense Trel. Synonym M TRO
Piper tatei Trel. Synonym M WCSP (in review)
Piper taumanum C.DC. Unresolved L WCSP (in review)
Piper teapense C.DC. Unresolved L WCSP (in review)
Piper tectoniaefolium (Kunth) Kunth ex C. DC. Accepted M TRO
Piper tectoniifolium (Kunth) Steud. Accepted M WCSP (in review)
Piper tectoniifolium Kunth Unresolved L TRO
Piper tecumense Trel. Accepted M TRO
Piper tecutlanum Trel. & Standl. Synonym M WCSP (in review)
Piper tejucense (Miq.) C. DC. Synonym L TRO
Piper telanum Trel. Synonym L WCSP (in review)
Piper telembi J.G. García Accepted M TRO
Piper tembladorense Trel. ex L. Williams Synonym M TRO
Piper temptum Trel. Accepted M TRO
Piper tenebricosum Trel. Accepted M TRO
Piper tenellum Sw. Synonym M WCSP (in review)
Piper tentatum Trel. Synonym M WCSP (in review)
Piper tenue Kunth Accepted M WCSP (in review)
Piper tenuiamentum C.DC. Unresolved L WCSP (in review)
Piper tenuibracteum C.DC. Unresolved L WCSP (in review)
Piper tenuiculispicum Trel. Synonym M WCSP (in review)
Piper tenuicuspe (Miq.) C. DC. Accepted L TRO
Piper tenuicuspe var. tenuicuspe Synonym L TRO
Piper tenuiflorum D.Dietr. Unresolved L WCSP (in review)
Piper tenuiflorum Vahl Unresolved L WCSP (in review)
Piper tenuifolium C.DC. Synonym M WCSP (in review)
Piper tenuilimbum C. DC. Accepted M TRO
Piper tenuimucronatum C.DC. Accepted M WCSP (in review)
Piper tenuinerve C. DC. Accepted M TRO
Piper tenuipedunculum C.DC. Unresolved L WCSP (in review)
Piper tenuipes C.DC. Synonym L WCSP (in review)
Piper tenuirameum C.DC. Unresolved L WCSP (in review)
Piper tenuispicatum Steud. Unresolved L WCSP (in review)
Piper tenuispicum C.DC. Synonym M WCSP (in review)
Piper tenuistylum C. DC. Synonym M TRO
Piper tepezontesense Trel. Unresolved L WCSP (in review)
Piper tepicanum C.DC. Unresolved L WCSP (in review)
Piper tepuiense Steyerm. Accepted M WCSP (in review)
Piper tequendanense C. DC. Accepted M TRO
Piper terminale D.Dietr. Unresolved L WCSP (in review)
Piper terminale Kunth Unresolved L WCSP (in review)
Piper terminaliflorum Y.Q. Tseng Synonym L TRO
Piper terminalispicum Standl. Synonym M WCSP (in review)
Piper terrabanum C.DC. Accepted M WCSP (in review)
Piper terronesense Trel. Synonym M TRO
Piper terryae Standl. Unresolved L WCSP (in review)
Piper tesserispicum Trel. Synonym M WCSP (in review)
Piper tessmanni Trel. Accepted M TRO
Piper tetragonum (Ruiz & Pav.) Vahl Synonym M TRO
Piper tetraphyllum G.Forst. Synonym M WCSP (in review)
Piper teysmanii (Miq.) C. DC. Accepted M TRO
Piper thebaudianum Trel. Unresolved L WCSP (in review)
Piper theobromifolium O.Schwartz Unresolved L WCSP (in review)
Piper thermale Vahl Unresolved L WCSP (in review)
Piper thiemeanum Trel. Synonym M WCSP (in review)
Piper thomasii Tebbs Accepted M WCSP (in review)
Piper thomsonii (C. DC.) Hook. f. Accepted L TRO
Piper thomsonii var. thomsonii Synonym L TRO
Piper thomsonii var. trichostigma Chaveer. & Sudmoon Synonym L WCSP (in review)
Piper thorelii C.DC. Unresolved L WCSP (in review)
Piper thwaitesii C.DC. Unresolved L WCSP (in review)
Piper thwaitseii C. DC. Unresolved L TRO
Piper tigerianum C.DC. Synonym L WCSP (in review)
Piper tiguanum C. DC. Synonym L TRO
Piper tikalense Trel. Synonym M WCSP (in review)
Piper tilaranum Trel. Synonym L WCSP (in review)
Piper tiliifolium Desv. ex Ham. Synonym M TRO
Piper tiliifolium var. paulownifolium (C.DC.) C.DC. Synonym L WCSP (in review)
Piper timbiquinum C. DC. Synonym M TRO
Piper timbuchianum Trel. Accepted M TRO
Piper timothianum A.C.Sm. Unresolved L WCSP (in review)
Piper tinctum Trel. Synonym M TRO
Piper tingens Trel. Synonym M TRO
Piper tithymaloides Vahl Unresolved L WCSP (in review)
Piper tjambae C.DC. Unresolved L WCSP (in review)
Piper tobagoanum C. DC. Synonym M TRO
Piper tobagoanum var. humilior C. DC. Synonym L TRO
Piper tocacheanum C. DC. Accepted M TRO
Piper tolimae C. DC. Synonym M TRO
Piper tomas-albertoi Trel. & Yunck. Synonym M TRO
Piper tomentosum Mill. Unresolved L WCSP (in review)
Piper tomentosum Vahl Unresolved L WCSP (in review)
Piper tomentosum C.DC. Unresolved L WCSP (in review)
Piper tomohonum C.DC. Unresolved L WCSP (in review)
Piper tonduzii C.DC. Accepted M WCSP (in review)
Piper tonduzii var. semiherbaceum Trel. Synonym L TRO
Piper tonoroanum Trel. & Yunck. Synonym M WCSP (in review)
Piper toppingii C.DC. Unresolved L WCSP (in review)
Piper torbecanum Trel. Unresolved L WCSP (in review)
Piper toronotepuiense Steyerm. Accepted M WCSP (in review)
Piper torresanum Trel. Synonym M WCSP (in review)
Piper torricellense Lauterb. Unresolved L WCSP (in review)
Piper tortivenulosum Yunck. Accepted M WCSP (in review)
Piper tortivenulosum f. tortivenulosum Synonym L TRO
Piper tortivenulosum var. tortivenulosum Synonym L TRO
Piper tortuosipilum Trel. Synonym M TRO
Piper tortuosivenosum Trel. Accepted M TRO
Piper tovarense Trel. & Yunck. Accepted M WCSP (in review)
Piper townsendii C. DC. Accepted M TRO
Piper trachydermum Trel. Synonym M WCSP (in review)
Piper trachyphyllum C. DC. Accepted M TRO
Piper tractifolium Trel. Synonym M TRO
Piper translucens Yunck. Accepted M WCSP (in review)
Piper transpontinum Trel. Accepted M TRO
Piper transpontinum var. transpontinum Synonym L TRO
Piper treleaseanum Britton & P. Wilson Synonym M TRO
Piper trianae C. DC. Accepted M TRO
Piper triandrum F.Muell. Unresolved L WCSP (in review)
Piper triangulare Chew ex P.Royen Unresolved L WCSP (in review)
Piper tricarinatum Haw. Unresolved L WCSP (in review)
Piper trichocarpon C.DC. Accepted M WCSP (in review)
Piper trichocladum C.DC. Unresolved L WCSP (in review)
Piper trichogynum C. DC. Accepted M TRO
Piper trichoneuron (Miq.) C. DC. Accepted L TRO
Piper trichophlebium Trel. Synonym M WCSP (in review)
Piper trichophyllum C.DC. Unresolved L WCSP (in review)
Piper trichopodum C.DC. Unresolved L WCSP (in review)
Piper trichopus Trel. Synonym M WCSP (in review)
Piper trichorhachis C. DC. Accepted M TRO
Piper trichostachyon (Miq.) C. DC. Accepted M TRO
Piper trichostigma (Chaveer. & Sudmoon) Suwanph. & Chantar. Accepted M WCSP (in review)
Piper trichostylopse Trel. Accepted M TRO
Piper trichostylopse var. trichostylopse Synonym L TRO
Piper trichostylum C. DC. Accepted M TRO
Piper tricolor Y.Q. Tseng Accepted M TRO
Piper tricuspe (Miq.) C. DC. Accepted L TRO
Piper tridentipilum C. DC. Accepted M TRO
Piper trifoliatum L. Unresolved L TRO
Piper trifolium L. Synonym M TRO
Piper trigoniastrifolium C. DC. Accepted M TRO
Piper trigonioideum C.DC. Unresolved L WCSP (in review)
Piper trigonocarpum Trel. Unresolved L WCSP (in review)
Piper trigonodrupum Yunck. Accepted M TRO
Piper trigonum C.DC. Accepted M WCSP (in review)
Piper trimetrale C.DC. Unresolved L WCSP (in review)
Piper trinerve (Ruiz & Pav.) Vahl Synonym M TRO
Piper trineuron Miq. Unresolved L WCSP (in review)
Piper trinitatis C. DC. Synonym M TRO
Piper trioicum Roxb. Unresolved L WCSP (in review)
Piper triquetribaccum Trel. Unresolved L WCSP (in review)
Piper triquetrifructum Trel. Unresolved L WCSP (in review)
Piper triquetrofructum Trel. ex Standl. Synonym M WCSP (in review)
Piper triquetrum Opiz Unresolved L WCSP (in review)
Piper triseriale C. DC. Synonym M TRO
Piper tristachyon C.DC. Unresolved L WCSP (in review)
Piper tristachyum Poir. Unresolved L WCSP (in review)
Piper tristemon C.DC. Accepted M WCSP (in review)
Piper tristigmum Trel. Accepted M TRO
Piper triumphale Trel. Synonym M WCSP (in review)
Piper trombek P.Royen Unresolved L WCSP (in review)
Piper trukense Hosok. Unresolved L TRO
Piper trultense Hosok. Unresolved L WCSP (in review)
Piper truman-yunckeri R. Callejas P. Accepted M TRO
Piper truncatibaccum C.DC. Unresolved L WCSP (in review)
Piper truncatum Vell. Accepted M WCSP (in review)
Piper tsakianum C. DC. Synonym M TRO
Piper tsangyuanense P.S. Chen & P.C. Zhu Accepted M TRO
Piper tsengianum M.G. Gilbert & N.H. Xia Accepted M TRO
Piper tsuritkubense Trel. Synonym M TRO
Piper tubemsum Sessé & Moc. Unresolved L WCSP (in review)
Piper tuberculatum Jacq. Accepted M WCSP (in review)
Piper tuberculatum var. allenii Trel. Synonym L TRO
Piper tuberculatum var. cangrejalense Trel. Synonym L WCSP (in review)
Piper tuberculatum var. minus C.DC. Synonym L WCSP (in review)
Piper tuberculatum var. rigidomembranaceum C.DC. Synonym L WCSP (in review)
Piper tuberculatum var. scandens Trel. & Yunck. Synonym L TRO
Piper tuberosum D.Dietr. Unresolved L WCSP (in review)
Piper tucumanum C. DC. Accepted M TRO
Piper tuerckheimii C.DC. Accepted M WCSP (in review)
Piper tuisanum C.DC. Unresolved L WCSP (in review)
Piper tumidicondyli Trel. Synonym L TRO
Piper tumidinodum Yunck. Unresolved L WCSP (in review)
Piper tumidipedunculatum Trel. Synonym M WCSP (in review)
Piper tumidipedunculum Trel. Synonym M TRO
Piper tumidum Kunth Accepted M TRO
Piper tumupasense Yunck. Accepted M TRO
Piper tungurahuae Sodiro Synonym M TRO
Piper turbense Trel. Accepted M TRO
Piper turbinatum Noronha Unresolved L WCSP (in review)
Piper turrialvanum C.DC. Synonym M WCSP (in review)
Piper turrialvanum var. magnifolium C. DC. Synonym L TRO
Piper tutuilae C.DC. Unresolved L WCSP (in review)
Piper tuxpenyana (Trel.) Lundell Synonym M TRO
Piper tuxpenyanum (Trel.) Lundell Synonym M WCSP (in review)
Piper uaupesense Yunck. Synonym M TRO
Piper ubiqueasperum Trel. Accepted M TRO
Piper ubiquescabridum Trel. Accepted M TRO
Piper ucayalianum Trel. Accepted M TRO
Piper udicola C.DC. Unresolved L WCSP (in review)
Piper udimontanum C.DC. Synonym M WCSP (in review)
Piper udisilvestre C. DC. Accepted M TRO
Piper uhdei C. DC. Accepted M TRO
Piper ulceratum Trel. Accepted M TRO
Piper ulceratum var. ulceratum Synonym L TRO
Piper uleanum Trel. Accepted M TRO
Piper ulei C. DC. Accepted M TRO
Piper ulmifolium Steud. Unresolved L WCSP (in review)
Piper ulvifolium K.Schum. & Lauterb. Unresolved L WCSP (in review)
Piper umbellatum L. Accepted M WCSP (in review)
Piper umbellatum var. glabrum C. DC. Synonym L TRO
Piper umbellatum var. subpeltatum (Willd.) C. DC. Synonym L TRO
Piper umbellatum var. vestitum C. DC. Synonym L TRO
Piper umbilicatum (Ruiz & Pav.) Vahl Synonym M TRO
Piper umbraculum C. DC. Synonym M TRO
Piper umbricola C.DC. Accepted M WCSP (in review)
Piper umbriculum (Cuatrec.) M.A.Jaram. & Callejas Unresolved L WCSP (in review)
Piper umbriense Trel. & Yunck. Accepted M TRO
Piper umbrigaudens C. DC. Synonym M TRO
Piper umbrosum Kunth Synonym L TRO
Piper unauriculatum Trel. Synonym M TRO
Piper uncatum Trel. Synonym M WCSP (in review)
Piper uncinulatum Ridl. Unresolved L WCSP (in review)
Piper undeninervium C. DC. Synonym M TRO
Piper unduavinum C. DC. Synonym M TRO
Piper ungaramense C.DC. Unresolved L WCSP (in review)
Piper unguiculatum Ruiz & Pav. Accepted M TRO
Piper unguiculiferum Trel. Synonym M TRO
Piper unillanum Trel. & Yunck. Accepted M TRO
Piper urdanetanum C.DC. Unresolved L WCSP (in review)
Piper urophyllum C.DC. Accepted M WCSP (in review)
Piper urostachyum Hemsl. Accepted M WCSP (in review)
Piper urubambanum Trel. Accepted M TRO
Piper uspantanense C.DC. ex Donn.Sm. Accepted M WCSP (in review)
Piper usterii C.DC. Unresolved L WCSP (in review)
Piper usumacintense Lundell Accepted M TRO
Piper utinganum Yunck. Accepted M TRO
Piper uvitanum C.DC. Synonym M WCSP (in review)
Piper vaccinum Standl. & Steyerm. Synonym L WCSP (in review)
Piper vaginans C. DC. Accepted M TRO
Piper vahlii D.Dietr. Unresolved L WCSP (in review)
Piper valdivianum Callejas Unresolved L WCSP (in review)
Piper valetudinarii Trel. Synonym M WCSP (in review)
Piper valladolidense Yunck. Accepted M TRO
Piper vallicolum C.DC. Synonym M WCSP (in review)
Piper vanderveldeanum Trel. Unresolved L WCSP (in review)
Piper varablancanum Trel. Synonym M TRO
Piper variabile C.DC. Synonym M WCSP (in review)
Piper variabile var. obtentum Trel. Synonym L WCSP (in review)
Piper varibracteum C.DC. Unresolved L WCSP (in review)
Piper variegatum (Ruiz & Pav.) Pers. Synonym M WCSP (in review)
Piper variifolium (Miq.) C. DC. Accepted L TRO
Piper variipilum C.DC. Unresolved L WCSP (in review)
Piper variitrichum Yunck. Synonym M WCSP (in review)
Piper varium Trel. Synonym M TRO
Piper vasculosum Wall. Unresolved L WCSP (in review)
Piper vaupelii Lauterb. Synonym M WCSP (in review)
Piper vellosoi Yunck. Accepted M TRO
Piper velutibracteum C.DC. Unresolved L WCSP (in review)
Piper velutinervium C.DC. Unresolved L WCSP (in review)
Piper velutinibaccum C. DC. Accepted M TRO
Piper velutininervosum Trel. Accepted M TRO
Piper velutinovarium C. DC. Accepted M TRO
Piper velutinum Kunth Accepted M TRO
Piper venamoense Steyerm. Accepted M WCSP (in review)
Piper veneralense Trel. & Yunck. Accepted M TRO
Piper venezuelense C.DC. Synonym M WCSP (in review)
Piper venosum (Miq.) C. DC. Accepted L TRO
Piper ventoleranum Trel. Synonym M WCSP (in review)
Piper venturii Trel. Synonym M TRO
Piper venturii var. yesoanum Trel. Synonym L TRO
Piper venulosissimum Yunck. Accepted M TRO
Piper venulosum Trel. Synonym M WCSP (in review)
Piper venustum Wall. Unresolved L WCSP (in review)
Piper veraguense C.DC. Accepted M WCSP (in review)
Piper veraguense var. mutisii (Trel. & Yunck.) Steyerm. Synonym L TRO
Piper veraguense var. veraguense Synonym L TRO
Piper verbascifolium (Miq.) C. DC. Accepted L TRO
Piper verbenanum C.DC. Synonym M WCSP (in review)
Piper veredianum Trel. Accepted M TRO
Piper vergelense Trel. & Standl. Accepted M TRO
Piper vermiculatum C. DC. Accepted M TRO
Piper verruclifolium Trel. Unresolved L WCSP (in review)
Piper verrucosum Sw. Synonym L WCSP (in review)
Piper verruculaecaule Trel. Accepted M TRO
Piper verruculaefolium Trel. Accepted M TRO
Piper verruculaepetiolum Trel. Synonym M TRO
Piper verruculicaule Trel. Unresolved L WCSP (in review)
Piper verruculigerum Trel. Synonym M WCSP (in review)
Piper verruculipetiolum Trel. Unresolved L WCSP (in review)
Piper verruculipetiolum Trel. ex Standl. Unresolved L WCSP (in review)
Piper verruculosum C.DC. Accepted M WCSP (in review)
Piper versteegii C.DC. Unresolved L WCSP (in review)
Piper verticillatum L. Synonym M WCSP (in review)
Piper vestitifolium C.DC. Synonym M WCSP (in review)
Piper vestitum C.DC. Unresolved L WCSP (in review)
Piper vexans Trel. Synonym M WCSP (in review)
Piper via-chicoense Yunck. Accepted M TRO
Piper viae-marginis Trel. Synonym M WCSP (in review)
Piper vicinum Trel. Synonym M WCSP (in review)
Piper vicosanum Yunck. Accepted M TRO
Piper vicosanum var. vicosanum Synonym L TRO
Piper victorianum C.DC. Synonym L WCSP (in review)
Piper villalobosense Yunck. Accepted M TRO
Piper villarrealii Yunck. Accepted M TRO
Piper villibracteum C. DC. Synonym M TRO
Piper villilimbum C.DC. Unresolved L WCSP (in review)
Piper villipedunculum C.DC. Unresolved L WCSP (in review)
Piper villipetiolatum Trel. ex Lundell Unresolved L WCSP (in review)
Piper villirameum C.DC. Unresolved L WCSP (in review)
Piper villiramulum C.DC. Accepted M WCSP (in review)
Piper villiramulum var. gamboanum (C. DC.) Trel. Synonym L TRO
Piper villiramulum var. villiramulum Synonym L TRO
Piper villirhache C.DC. Unresolved L WCSP (in review)
Piper villistipulum Trel. Synonym M TRO
Piper villosispicum Trel. Accepted M TRO
Piper villosisquamulum Trel. Synonym M TRO
Piper villosissimum Yunck. Accepted M TRO
Piper villosulum C.DC. Unresolved L WCSP (in review)
Piper villosum C. DC. Synonym M TRO
Piper viminale Opiz Unresolved L WCSP (in review)
Piper viminifolium Trel. Accepted M TRO
Piper virgatum Yunck. Unresolved L WCSP (in review)
Piper virgenense Trel. & Yunck. Accepted M TRO
Piper virginicum Trel. & Standl. Accepted M TRO
Piper virgulticola Trel. Synonym M TRO
Piper virgultorum C. DC. Accepted M TRO
Piper viridibaccum Trel. Unresolved L WCSP (in review)
Piper viridicaule Trel. Accepted M TRO
Piper viridifolium Trel. Synonym M TRO
Piper viridilimbum Trel. Accepted M TRO
Piper viridispicum Trel. Synonym M TRO
Piper viridistachyum Yunck. Accepted M WCSP (in review)
Piper virillanum C.DC. Synonym M WCSP (in review)
Piper viscaianum Trel. & Yunck. Synonym M TRO
Piper vitabile Trel. Synonym M WCSP (in review)
Piper vitabundum Trel. Synonym M TRO
Piper vitaceum Yunck. Accepted M WCSP (in review)
Piper vitaceum var. vitaceum Synonym L TRO
Piper viticaule Yunck. Unresolved L WCSP (in review)
Piper vitiense A.C.Sm. Unresolved L WCSP (in review)
Piper voigtii C.DC. Unresolved L WCSP (in review)
Piper volkensii C.DC. Unresolved L WCSP (in review)
Piper volubile C. DC. Accepted M TRO
Piper wabagense W.L.Chew Unresolved L WCSP (in review)
Piper wachenheimii Trel. Accepted M WCSP (in review)
Piper wagneri C.DC. Accepted M WCSP (in review)
Piper wagneri var. minutispicum (C. DC.) Trel. Synonym L TRO
Piper walkeri Miq. Unresolved L WCSP (in review)
Piper wallichii (Miq.) Hand.-Mazz. Accepted L TRO
Piper wallichii var. hupeense (C. DC.) Hand.-Mazz. Synonym L TRO
Piper wangii M.G. Gilbert & N.H. Xia Accepted M TRO
Piper warakaboura (Miq.) C. DC. Synonym M TRO
Piper warburgii C.DC. Unresolved L WCSP (in review)
Piper weddellii C. DC. Accepted M TRO
Piper wedelii Yunck. Synonym M TRO
Piper wenzelii C.DC. Unresolved L WCSP (in review)
Piper werneri C.DC. Unresolved L WCSP (in review)
Piper whiteae Trel. Synonym M TRO
Piper wibomii Yunck. Accepted M TRO
Piper wichmannii C. DC. Synonym M TRO
Piper wightii Miq. Unresolved L WCSP (in review)
Piper wilhelmense Chew ex P.Royen Unresolved L WCSP (in review)
Piper wilhemense Chew Unresolved L TRO
Piper willdenowii Kunth ex Miq. Unresolved L WCSP (in review)
Piper williamsii Trel. [Illegitimate] Synonym M WCSP (in review)
Piper wilsonii Trel. Synonym L WCSP (in review)
Piper wingfieldii Steyerm. Accepted M WCSP (in review)
Piper winkleri C.DC. Unresolved L WCSP (in review)
Piper woytkowskii Yunck. Accepted M TRO
Piper wrightii C.DC. Unresolved L WCSP (in review)
Piper wulfschlaegelii C.DC. Unresolved L WCSP (in review)
Piper wurdackii Yunck. Synonym M WCSP (in review)
Piper wydlerianum C. DC. Accepted M TRO
Piper xalapense C. DC. Accepted M TRO
Piper xanthocarpum C.DC. Unresolved L WCSP (in review)
Piper xanthocladum Trel. ex Standl. & S. Calderón Unresolved L TRO
Piper xanthoneurum Trel. Synonym L WCSP (in review)
Piper xanthostachyum C.DC. Accepted M WCSP (in review)
Piper xapuryense C. DC. Accepted M TRO
Piper xiroresanum C. DC. Synonym M TRO
Piper xylopioides Kunth Synonym L TRO
Piper xylosteoides (Kunth) Steud. Accepted M TRO
Piper xylosteoides var. subauriculatum (Miq.) Yunck. Accepted L TRO
Piper yaguarundi D.Parodi Unresolved L WCSP (in review)
Piper yalochanum Trel. Synonym M WCSP (in review)
Piper yanaconasense Trel. & Yunck. Accepted M TRO
Piper yananoanum Trel. Accepted M TRO
Piper yapeanum Trel. Synonym M WCSP (in review)
Piper yaracuyense Yunck. Accepted M WCSP (in review)
Piper yaranum Trel. Unresolved L WCSP (in review)
Piper yaxhanum Trel. Synonym M TRO
Piper yessupianum Trel. Accepted M TRO
Piper yinkiangense Y.Q. Tseng Accepted M TRO
Piper ynesae Trel. Unresolved L TRO
Piper yoroanum Trel. Synonym M WCSP (in review)
Piper yousei Trel. Accepted M WCSP (in review)
Piper yucatanense C.DC. Accepted M WCSP (in review)
Piper yui M.G. Gilbert & N.H. Xia Accepted M TRO
Piper yunckeri Trel. Synonym M WCSP (in review)
Piper yunckeri var. latum Trel. Synonym L WCSP (in review)
Piper yungasanum Yunck. Accepted M TRO
Piper yunnanense Y.Q. Tseng Accepted M TRO
Piper yurimaguasanum Trel. Accepted M TRO
Piper yurumalense Trel. Unresolved L TRO
Piper yzabalanum C.DC. ex Donn.Sm. Accepted M WCSP (in review)
Piper yzabalanum var. pubinerve Trel. Synonym L WCSP (in review)
Piper zacapanum Trel. & Standl. Accepted M TRO
Piper zacatense C. DC. Accepted M TRO
Piper zacatense var. percaudatum C. DC. Synonym L TRO
Piper zacuapanum C.DC. Synonym M WCSP (in review)
Piper zamboangae C.DC. Unresolved L WCSP (in review)
Piper zarceroense Trel. Synonym M WCSP (in review)
Piper zarumanum Trel. Accepted M TRO
Piper zenkeri C.DC. Unresolved L WCSP (in review)
Piper zentanum C.DC. Unresolved L WCSP (in review)
Piper zeylanicum Miq. Unresolved L WCSP (in review)
Piper zhorquinense C.DC. Accepted M WCSP (in review)
Piper zingiberinum Trel. Synonym M TRO
Piper zippelia C.DC. Synonym M WCSP (in review)
Piper zollingeri C.DC. Unresolved L WCSP (in review)
Piper zollingerianum C.DC. Unresolved L WCSP (in review)
Piper zonulatispicum Trel. Synonym M TRO
Piper zuccarinii C.DC. Unresolved L WCSP (in review)