The Plant List — A working list for all plant species

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1778 plant name records match your search criteria Polygonum. The results are below.

The names found have these generic epithets:

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

Name Status Confi­dence level Source Date supplied
Polygonum abbreviatum Kom. Accepted M TRO
Polygonum aboriginum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum abscissum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum abyssinicum A.Rich. Unresolved L WCSP (in review)
Polygonum acadiense Fernald Synonym M TRO
Polygonum acanthophyllum Lindau Synonym M TRO
Polygonum acaule Hook. f. Synonym M TRO
Polygonum acerosum Ledeb. ex Meisn. Accepted M TRO
Polygonum acetosaefolium Vent. Synonym M TRO
Polygonum acetosellum Klokov [Invalid] Synonym M WCSP (in review)
Polygonum acetosum M.Bieb. Accepted M WCSP (in review)
Polygonum achoreum S.F. Blake Accepted M TRO
Polygonum acidulum Willd. Synonym M TRO
Polygonum acidum Willd. ex Meisn. Unresolved L WCSP (in review)
Polygonum acidum Pall. Unresolved L WCSP (in review)
Polygonum acmophyllum Gand. Unresolved L WCSP (in review)
Polygonum acre Kunth [Illegitimate] Synonym M WCSP (in review)
Polygonum acre Lam. Synonym M TRO
Polygonum acre var. aquatile Meisner in Martius Synonym L TRO
Polygonum acre var. brachystachyum Meisn. Synonym L TRO
Polygonum acre var. confertiflorum Meisn. Synonym L TRO
Polygonum acre var. leptostachyum Meisn. Synonym L TRO
Polygonum acre var. majus Meisn. Synonym L TRO
Polygonum acre var. riparium Meisn. Synonym L TRO
Polygonum acuminatum Kunth Synonym M WCSP (in review)
Polygonum acuminatum var. brachystemon Meisn. Synonym L TRO
Polygonum acuminatum var. capense Meisn. Synonym L TRO
Polygonum acuminatum var. glabrescens Meisn. Synonym L TRO
Polygonum acuminatum var. humboldtii Meisn. Synonym L TRO
Polygonum acuminatum var. microstemon Mart. ex Meisn. Synonym L TRO
Polygonum acuminatum var. setigerum Meisn. Synonym L TRO
Polygonum acuminatum var. subcordatum Meisn. Synonym L TRO
Polygonum acuminatum var. weddellii Meisn. Synonym L TRO
Polygonum acutatum Lehm. Synonym M WCSP (in review)
Polygonum acutifolium Schur Unresolved L WCSP (in review)
Polygonum acutum Gand. Unresolved L WCSP (in review)
Polygonum adenophorum Spreng. Unresolved L WCSP (in review)
Polygonum adenophyllum Cham. & Schltdl. Unresolved L WCSP (in review)
Polygonum adenopodum Sam. Synonym M TRO
Polygonum adenotrichum Griff. Unresolved L WCSP (in review)
Polygonum adoense Gand. Unresolved L WCSP (in review)
Polygonum adpressum R.Br. Unresolved L WCSP (in review)
Polygonum adpressum Labill. Unresolved L WCSP (in review)
Polygonum aequale Lindm. Synonym M WCSP (in review)
Polygonum aequale subsp. oedocarpum Lindm. Synonym L TRO
Polygonum aestivum (Ohki) Makino Unresolved L WCSP (in review)
Polygonum affine D. Don Accepted M TRO
Polygonum afghanicum Meisn. Accepted M TRO
Polygonum afromontanum Greenway Accepted M TRO
Polygonum afyonicum Leblebici & Gemici Unresolved L WCSP (in review)
Polygonum agreste Sumner Synonym M TRO
Polygonum agrestinum Jord. ex Boreau Synonym M TRO
Polygonum ajanense (Regel & Tiling) Grig. Accepted M TRO
Polygonum akakiense Cufod. Unresolved L WCSP (in review)
Polygonum alaskanum (Small) W. Wight ex Hultén Synonym M TRO
Polygonum alaskanum var. glabrescens Hultén Synonym L TRO
Polygonum alaskanum subsp. hultenianum Jurtzev Synonym L TRO
Polygonum alatum Buch.-Ham. ex D. Don Synonym M TRO
Polygonum alatum var. nepalense (Meisn.) Hook. f. Synonym L TRO
Polygonum albanicum Jáv. Accepted M WCSP (in review)
Polygonum albescens Gand. Unresolved L WCSP (in review)
Polygonum aleppicum Boiss. & Hausskn. Unresolved L WCSP (in review)
Polygonum alfredi Pilg. Synonym M TRO
Polygonum alismaefolium Fedde Unresolved L TRO
Polygonum allocarpum S.F. Blake Synonym M TRO
Polygonum alopecuroides Turcz. ex Meissn. Accepted M TRO
Polygonum alopecuroides Turcz. ex Besser Unresolved L TRO
Polygonum alopecuroides var. attenuatum Serg. Synonym L TRO
Polygonum alopecuroides f. pilosum C.F. Fang Synonym L TRO
Polygonum alpestre C.A.Mey. Synonym M WCSP (in review)
Polygonum alpinum All. Synonym M WCSP (in review)
Polygonum alpinum subsp. alaskanum (Small) S.L. Welsh Synonym L TRO
Polygonum alpinum var. alaskanum Small Synonym L TRO
Polygonum alpinum var. angustissimum Turcz. Synonym L TRO
Polygonum alpinum var. foliosum (R. Keller) Small Unresolved L TRO
Polygonum alpinum var. lapathifolium Cham. & Schltdl. Synonym L TRO
Polygonum alpinum var. sinicum Dammer ex Diels Synonym L TRO
Polygonum altissimum Moench Unresolved L WCSP (in review)
Polygonum ambiguum Meisn. Synonym M TRO
Polygonum amblyophyllum (H.Hara) Kitam. Unresolved L WCSP (in review)
Polygonum amboanum Fedde Unresolved L WCSP (in review)
Polygonum americanum (Fisch. & C.A. Mey.) T.M. Schust. & Reveal Accepted M TRO
Polygonum amgense Michaleva & Perf. Accepted M TRO
Polygonum ammanioides Jaub. & Spach Synonym M TRO
Polygonum ammannoides Jaub. & Spach Unresolved L WCSP (in review)
Polygonum ammophilum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum amoenum Blume Synonym M WCSP (in review)
Polygonum amphibium L. Synonym M WCSP (in review)
Polygonum amphibium subsp. amurense Hultén Synonym L TRO
Polygonum amphibium var. amurense Korsh. Synonym L TRO
Polygonum amphibium var. emersum Michx. Synonym L TRO
Polygonum amphibium var. hartwrightii (A. Gray) Bissell Synonym L TRO
Polygonum amphibium f. hartwrightii (A. Gray) S.F. Blake Synonym L TRO
Polygonum amphibium subsp. laevimarginatum Hultén Synonym L TRO
Polygonum amphibium var. muehlenbergii Meisn. Synonym L TRO
Polygonum amphibium f. natans (Moench) Stanford Unresolved L TRO
Polygonum amphibium var. natans Moench Synonym L TRO
Polygonum amphibium var. natans Leyss. Synonym L TRO
Polygonum amphibium var. stipulaceum N. Coleman Synonym L TRO
Polygonum amphibium f. terrestre (Leers) S.F. Blake Unresolved L TRO
Polygonum amphibium var. terrestre Leers Synonym L TRO
Polygonum amphibium var. terrestre Leyss. Synonym L TRO
Polygonum amphibium var. vestitum Hemsl. Synonym L TRO
Polygonum amplexicaule D.Don Synonym M WCSP (in review)
Polygonum amplexicaule var. amplexicaule Unresolved L TRO
Polygonum amplexicaule var. speciosum (Meisn.) Hook. f. Synonym L TRO
Polygonum ampliusculum Gand. Unresolved L WCSP (in review)
Polygonum amurense Vorosch. Accepted M TRO
Polygonum anacampseros L. Unresolved L TRO
Polygonum andrzejowskianum Klokov Synonym M WCSP (in review)
Polygonum anguillanum Koidz. Unresolved L WCSP (in review)
Polygonum angustifolium Pall. Accepted M TRO
Polygonum angustifolium var. songaricum (Schrenk ex Fisch. & C.A. Mey.) Steward Synonym L TRO
Polygonum angustissimum F.Muell. Unresolved L WCSP (in review)
Polygonum anomalum Bruyn Unresolved L WCSP (in review)
Polygonum antihaemorrhoidale Mart. Unresolved L WCSP (in review)
Polygonum antihaemorrhoidale var. aquatile Mart. Synonym L TRO
Polygonum antihaemorrhoidale f. aquatile Mart. Synonym L TRO
Polygonum antihaemorrhoidale f. riparium Mart. Synonym L TRO
Polygonum antihaemorrhoidale var. riparium Mart. Synonym L TRO
Polygonum aphyllum Krock. Synonym M TRO
Polygonum apoense Elmer Unresolved L WCSP (in review)
Polygonum appressum Steud. Unresolved L WCSP (in review)
Polygonum aquaticum A.Gray ex Meisn. Unresolved L WCSP (in review)
Polygonum arachnoideum Klotzsch ex Hook.f. Unresolved L WCSP (in review)
Polygonum arachnoideum Klotzsch ex Meisn. Unresolved L WCSP (in review)
Polygonum araraticum Kom. Synonym M TRO
Polygonum araricum Gand. Unresolved L WCSP (in review)
Polygonum araucanum Phil. Unresolved L WCSP (in review)
Polygonum arborescens Vell. Unresolved L WCSP (in review)
Polygonum arcticum Pall. ex Spreng. Synonym M TRO
Polygonum arcuatum Greene Synonym M TRO
Polygonum arenarium Waldst. & Kit. Accepted M WCSP (in review)
Polygonum arenarium subsp. janatae Soó Synonym L TRO
Polygonum arenarium subsp. pseudoarenarium Soó Synonym L TRO
Polygonum arenarium subsp. pulchellum (Loisel.) Thell. Accepted L WCSP (in review)
Polygonum arenarium subsp. pulchellum D. A. Webb & Chater Synonym L TRO
Polygonum arenastrum Boreau Accepted M WCSP (in review)
Polygonum arenastrum subsp. boreale (Lange) Á.Löve Synonym L WCSP (in review)
Polygonum arenastrum subsp. calcatum (Lindm.) Wissk. Synonym L WCSP (in review)
Polygonum arenastrum subsp. microspermum (Jord. ex Boreau) H.Scholz Synonym L WCSP (in review)
Polygonum arenicola Suksd. Unresolved L WCSP (in review)
Polygonum argenteum Ehrenb. ex Meisn. Synonym M WCSP (in review)
Polygonum argenteum Skvortsov Synonym M TRO
Polygonum argentum Brandão & Laca-B. Unresolved L WCSP (in review)
Polygonum argyrocoleon Steud. ex Kunze Accepted M TRO
Polygonum arianum Grig. Synonym M TRO
Polygonum aridum Boiss. & Hausskn. Unresolved L WCSP (in review)
Polygonum arifolium L. Synonym M TRO
Polygonum arifolium Thunb. Synonym M TRO
Polygonum arifolium var. lentiforme Fernald & Griscom Synonym L TRO
Polygonum arifolium var. perfoliatum L. Synonym L TRO
Polygonum arifolium var. pubescens (R.Keller) Fernald Unresolved L WCSP (in review)
Polygonum arnassense Gand. Unresolved L WCSP (in review)
Polygonum articulatum L. Synonym M TRO
Polygonum arussense Chiov. Unresolved L WCSP (in review)
Polygonum aschersonianum H.Gross Synonym M WCSP (in review)
Polygonum asclepiadeum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum asiaticum B.D.Jacks. Unresolved L WCSP (in review)
Polygonum asperulum Zapał. Unresolved L WCSP (in review)
Polygonum asperulum Wall. Unresolved L WCSP (in review)
Polygonum assamicum Meisn. Accepted M TRO
Polygonum atlanticum (B.L. Rob.) E.P. Bicknell Synonym M TRO
Polygonum atraphaxiforme Botsch. Synonym M TRO
Polygonum atraphaxis Thunb. Synonym M TRO
Polygonum atraphaxoides Thunb. Synonym M TRO
Polygonum atriplicifolium Wall. Unresolved L WCSP (in review)
Polygonum attenuatum R. Br. Synonym M TRO
Polygonum aubertii L.Henry Synonym M WCSP (in review)
Polygonum auriculatum Makino Synonym M TRO
Polygonum austiniae Greene Synonym M WCSP (in review)
Polygonum australe Thiéb.-Bern. ex Pers. Unresolved L WCSP (in review)
Polygonum australe A.Rich. Unresolved L WCSP (in review)
Polygonum australe Spreng. Unresolved L WCSP (in review)
Polygonum autumnale Brenckle Synonym M TRO
Polygonum aviculare L. Accepted M WCSP (in review)
Polygonum aviculare subsp. aequale (Lindm.) Asch. & Graebn. Synonym L WCSP (in review)
Polygonum aviculare var. angustissimum Meisn. Synonym L WCSP (in review)
Polygonum aviculare var. aviculare Synonym L TRO
Polygonum aviculare subsp. aviculare Synonym L TRO
Polygonum aviculare subsp. boreale (Lange) Karlsson Synonym L WCSP (in review)
Polygonum aviculare var. boreale Lange Synonym L WCSP (in review)
Polygonum aviculare subsp. buxiforme (Small) Costea & Tardif Accepted L TRO
Polygonum aviculare subsp. calcatum (Lindm.) Thell. Synonym L WCSP (in review)
Polygonum aviculare subsp. depressum (Meisn.) Arcang. Accepted L TRO
Polygonum aviculare var. depressum Meisn. Synonym L TRO
Polygonum aviculare var. eximium Asch. & Graebn. Synonym L TRO
Polygonum aviculare var. fusco-ochreatum (Kom.) A.J.Li Accepted L WCSP (in review)
Polygonum aviculare var. heterophyllum (Lindm.) Munshi & Javeid Synonym L WCSP (in review)
Polygonum aviculare subsp. heterophyllum Asch. & Graebn. Synonym L TRO
Polygonum aviculare subsp. microspermum (Jord. ex Boreau) Berher Synonym L TRO
Polygonum aviculare var. minutiflorum Franch. Synonym L TRO
Polygonum aviculare subsp. monspeliense (Thiéb.-Bern. ex Pers.) Arcang. Synonym L TRO
Polygonum aviculare var. montevidense Cham. & Schltdl. Synonym L TRO
Polygonum aviculare var. neglectum (Besser) Rchb. Synonym L WCSP (in review)
Polygonum aviculare subsp. neglectum (Besser) Arcang. Synonym L WCSP (in review)
Polygonum aviculare subsp. pulchellum (Loisel.) O.Bolòs & Vigo Synonym L WCSP (in review)
Polygonum aviculare subsp. rectum Chrtek Synonym L TRO
Polygonum aviculare subsp. robertii (Loisel.) O.Bolòs & Vigo Synonym L WCSP (in review)
Polygonum aviculare subsp. rurivagum (Jord. ex Boreau) O.Bolòs & Vigo Synonym L WCSP (in review)
Polygonum aviculare subsp. rurivagum (Jord. ex Boreau) Berher Synonym L TRO
Polygonum aviculare var. vegetum Ledeb. Synonym L WCSP (in review)
Polygonum aviculare var. virgatum Peterm. Synonym L TRO
Polygonum axillare Kuntze Unresolved L WCSP (in review)
Polygonum axillare Hook.f. Unresolved L WCSP (in review)
Polygonum axillaris Hook.f. Unresolved L WCSP (in review)
Polygonum azoricum H.C.Watson ex Meisn. Unresolved L WCSP (in review)
Polygonum babingtonii Hance Synonym L TRO
Polygonum baccatum Sol. ex Meisn. Unresolved L WCSP (in review)
Polygonum bacciferum Bojer Unresolved L WCSP (in review)
Polygonum baicalense Sipliv. Accepted M TRO
Polygonum balansae Boiss. Unresolved L WCSP (in review)
Polygonum balansae subsp. rhizoxylon (Pau & Font Quer) Greuter Unresolved L WCSP (in review)
Polygonum baldschuanicum Regel Synonym M WCSP (in review)
Polygonum baltistanicum Chaudhri Unresolved L WCSP (in review)
Polygonum banca Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum banka Buch.-Ham. ex Wall. Unresolved L WCSP (in review)
Polygonum barbatum L. Synonym M WCSP (in review)
Polygonum barbatum Walter Synonym M TRO
Polygonum barbatum var. gracile (Danser) Steward Synonym L TRO
Polygonum barbatum subsp. gracile Danser Synonym L TRO
Polygonum barbatum var. stagninum (Buch.-Ham. ex Meisn.) Steward Synonym L TRO
Polygonum bargusinense Peshkova Accepted M TRO
Polygonum basiramium (Small) T.M. Schust. & Reveal Accepted M TRO
Polygonum battandieri (Maire & Sennen) Maire & Sennen ex Vindt Unresolved L WCSP (in review)
Polygonum baumgartenianum Schur Unresolved L WCSP (in review)
Polygonum bellardii All. Accepted M WCSP (in review)
Polygonum bellardii var. gracilius Ledeb. Synonym L TRO
Polygonum bellardii var. patulum (M. Bieb.) Meisn. Synonym L TRO
Polygonum belophyllum Litv. Synonym M TRO
Polygonum benguetense Merr. Unresolved L WCSP (in review)
Polygonum bernardinum Greene Unresolved L WCSP (in review)
Polygonum berteroi Phil. Synonym M TRO
Polygonum bertolonii Goiran & Tonini Unresolved L WCSP (in review)
Polygonum betpakdalense Bajtenov Unresolved L WCSP (in review)
Polygonum bettfreudianum Lindau Unresolved L WCSP (in review)
Polygonum bettfreundianum Lind. Synonym M TRO
Polygonum beyrichianum Cham. & Schltdl. Synonym M TRO
Polygonum biaristatum Aitch. & Hemsl. Accepted M TRO
Polygonum × bicolor Borbás Unresolved L WCSP (in review)
Polygonum biconvexum Hayata Accepted M TRO
Polygonum bicorne Raf. Synonym M TRO
Polygonum bidwelliae S. Watson Accepted M TRO
Polygonum biforme Wahlenb. Unresolved L WCSP (in review)
Polygonum binsarii Silas & R.D.Gaur Synonym L WCSP (in review)
Polygonum bioritauense Ohki Unresolved L WCSP (in review)
Polygonum birmanicum Gage Synonym M TRO
Polygonum biscaticlium Buch.-Ham. ex Meisn. Unresolved L WCSP (in review)
Polygonum biscatilium Wall. Unresolved L WCSP (in review)
Polygonum bisculatium Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum bishirae Buch.-Ham. ex Meisn. Unresolved L WCSP (in review)
Polygonum bishirae Buch.-Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum bistorta L. Synonym M WCSP (in review)
Polygonum bistorta subsp. carneum Coode & Cullen Synonym L TRO
Polygonum bistorta subsp. cordifolium Malyschev Synonym L TRO
Polygonum bistorta var. cordifolium Turcz. Synonym L TRO
Polygonum bistorta subsp. ellipticum (Willd. ex Spreng.) Petrovsky Synonym L TRO
Polygonum bistorta var. ellipticum (Willd. ex Spreng.) Turcz. Synonym L TRO
Polygonum bistorta var. linearifolium S. Watson Synonym L TRO
Polygonum bistorta var. nitens Fisch. & C.A. Mey. Synonym L TRO
Polygonum bistorta var. oblongifolium Meisn. Synonym L TRO
Polygonum bistorta subsp. ochotense (Petrov ex Kom.) Vorosch. Synonym L TRO
Polygonum bistorta subsp. pacificum (Petrov ex Kom.) Vorosch. Synonym L TRO
Polygonum bistorta subsp. plumosum (Small) Hultén Synonym L TRO
Polygonum bistorta var. plumosum (Small) B. Boivin Synonym L TRO
Polygonum bistortoides Pursh Synonym L TRO
Polygonum bistortoides var. linearifolium (S. Watson) Small Synonym L TRO
Polygonum bistortoides var. oblongifolium (Meisn.) H. St. John Synonym L TRO
Polygonum bistortum Dulac Unresolved L WCSP (in review)
Polygonum blancheanum Gand. Unresolved L WCSP (in review)
Polygonum blumei Meisn. ex Miq. Synonym M TRO
Polygonum bocconei DC. ex Meisn. Unresolved L WCSP (in review)
Polygonum bodinieri H. Lév. & Vaniot Synonym M TRO
Polygonum × bogoriense Danser Unresolved L WCSP (in review)
Polygonum × bohemicum (Chrtek & Chrtková) Zika & Jacobson Synonym M WCSP (in review)
Polygonum bolanderi W.H. Brewer Accepted M TRO
Polygonum bonaerense Speg. Synonym M TRO
Polygonum bonatii H. Lév. Synonym M TRO
Polygonum bordzilowskii Klokov Synonym M WCSP (in review)
Polygonum boreale (Lange) Small Accepted M WCSP (in review)
Polygonum borgoicum Tupitz. Unresolved L WCSP (in review)
Polygonum borneense Meisn. Unresolved L WCSP (in review)
Polygonum bornmuelleri Litv. Accepted M TRO
Polygonum botuliforme Mozaff. Unresolved L WCSP (in review)
Polygonum bourdinii Gand. Unresolved L WCSP (in review)
Polygonum bowenkampii Phil. Accepted M TRO
Polygonum brachiatum Poir. Synonym M TRO
Polygonum brachypodum Baker Unresolved L WCSP (in review)
Polygonum brachytrichum Ohwi Unresolved L WCSP (in review)
Polygonum bracteatum Spreng. Unresolved L WCSP (in review)
Polygonum bracteosum Phil. Unresolved L WCSP (in review)
Polygonum brasiliense K. Koch Accepted M TRO
Polygonum braunii Bluff & Fingerh. Unresolved L WCSP (in review)
Polygonum breviarticulatum Rech.f. Unresolved L WCSP (in review)
Polygonum breviochreatum Makino Unresolved L WCSP (in review)
Polygonum brevisetum Meisn. Unresolved L WCSP (in review)
Polygonum brittingeri Opiz Synonym M WCSP (in review)
Polygonum brittingeri Beck Accepted M TRO
Polygonum brunonis Wall. Unresolved L WCSP (in review)
Polygonum buchananii Dammer Synonym M WCSP (in review)
Polygonum bucharicum Grig. Synonym M TRO
Polygonum buisanense Ohki Synonym M TRO
Polygonum bulbiferum Royle ex Bab. Synonym L TRO
Polygonum bungeanum Turcz. Synonym M TRO
Polygonum bussei Peter Unresolved L WCSP (in review)
Polygonum buxifolium Nutt. ex Bong. Synonym M TRO
Polygonum buxiforme Small Synonym M TRO
Polygonum buxiforme var. montanum (Small) R.J. Davis Unresolved L TRO
Polygonum caballeroi Phil. Unresolved L WCSP (in review)
Polygonum caducifolium Vorosch. Accepted M TRO
Polygonum caespitosum var. longisetum (Bruijn) Danser Synonym L TRO
Polygonum caespitosum subsp. yokusaianum (Makino) Danser Synonym L TRO
Polygonum calcatum Lindm. Synonym M WCSP (in review)
Polygonum californicum Meisn. Accepted M TRO
Polygonum callmei Beck Unresolved L WCSP (in review)
Polygonum calophyllum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum calostachyum Diels Synonym M TRO
Polygonum campanulatum Hook.f. Synonym M WCSP (in review)
Polygonum campanulatum var. campanulatum Unresolved L TRO
Polygonum campanulatum var. fulvidum Hook. f. Unresolved L TRO
Polygonum campanulatum var. lichiangense (W.W. Sm.) Steward Synonym L TRO
Polygonum camporum Meisn. Synonym M TRO
Polygonum camporum var. australe Meisn. Synonym L TRO
Polygonum camptianum Meisn. Unresolved L WCSP (in review)
Polygonum camptocladum Gand. Unresolved L WCSP (in review)
Polygonum camptostachys Gand. Unresolved L WCSP (in review)
Polygonum canadense (Greene) Fedde Unresolved L WCSP (in review)
Polygonum canescens Link ex Dethard. Unresolved L WCSP (in review)
Polygonum caniusculum Gand. Unresolved L WCSP (in review)
Polygonum capitatum Buch.-Ham. ex D.Don Synonym M WCSP (in review)
Polygonum cappadocicum Boiss. & Balansa Unresolved L WCSP (in review)
Polygonum cardiophyllum Gand. Unresolved L WCSP (in review)
Polygonum careyi Olney Accepted M WCSP (in review)
Polygonum carneum C. Koch Accepted M TRO
Polygonum carthusianorum Gand. Unresolved L WCSP (in review)
Polygonum cascadense W.H. Baker Accepted M TRO
Polygonum cashmiriense H. Gross Accepted M TRO
Polygonum caspicum Kom. Unresolved L WCSP (in review)
Polygonum cathayanum A.J. Li Accepted M TRO
Polygonum caucanum Fassett Unresolved L WCSP (in review)
Polygonum caucasicum Hoffm. Unresolved L WCSP (in review)
Polygonum caudatum Sam. Synonym M TRO
Polygonum caurianum B.L. Rob. Synonym M TRO
Polygonum caurianum subsp. hudsonianum S.J. Wolf & McNeill Synonym L TRO
Polygonum cavaleriei H. Lév. Synonym M TRO
Polygonum cedrorum Boiss. & Kotschy Unresolved L WCSP (in review)
Polygonum celebicum Danser Unresolved L WCSP (in review)
Polygonum centinodum Lam. Unresolved L TRO
Polygonum cephalophorum Greene Unresolved L WCSP (in review)
Polygonum cereale Salisb. Unresolved L WCSP (in review)
Polygonum cespitosum Blume Synonym M TRO
Polygonum cespitosum var. longisetum (Bruijn) Steward Synonym L TRO
Polygonum chamissoeanum Wedd. Synonym M TRO
Polygonum chamissonianum Steud. Unresolved L WCSP (in review)
Polygonum chanetii H. Lév. Synonym M TRO
Polygonum chaneyi B.Fedtsch. ex Steward Unresolved L WCSP (in review)
Polygonum changii Kitag. Synonym M TRO
Polygonum chelanicum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum chevrolatii Gand. Unresolved L WCSP (in review)
Polygonum chilense K. Koch Synonym M TRO
Polygonum chiloensis Rech. f. Accepted M TRO
Polygonum chinense L. Synonym M TRO
Polygonum chinense var. chinense Unresolved L TRO
Polygonum chinense var. hispidum Hook. f. Unresolved L TRO
Polygonum chinense f. hispidum (Hook. f.) Sam. Synonym L TRO
Polygonum chinense var. malaicum (Danser) Steward Synonym L TRO
Polygonum chinense var. ovalifolium Meisn. Unresolved L TRO
Polygonum chinense var. paradoxum (H. Lév.) A.J. Li Unresolved L TRO
Polygonum chitralicum Rech. f. & Schiman-Czeika Synonym M TRO
Polygonum chlorochryseum M.M.Ivanova Unresolved L WCSP (in review)
Polygonum chlorocoleum Steud. ex Boiss. Unresolved L WCSP (in review)
Polygonum chloroleucon Gand. Unresolved L WCSP (in review)
Polygonum chrtekii Czerep. Accepted M TRO
Polygonum chymophyllum Gand. Unresolved L WCSP (in review)
Polygonum ciliare Kitt. Unresolved L WCSP (in review)
Polygonum ciliatum Buch.-Ham. ex D.Don Unresolved L WCSP (in review)
Polygonum ciliatum Willd. ex Spreng. Unresolved L WCSP (in review)
Polygonum ciliatum Ehrenb. ex Meisn. Unresolved L WCSP (in review)
Polygonum ciliatum Lour. Unresolved L WCSP (in review)
Polygonum ciliinerve (Nakai) Ohwi Synonym M WCSP (in review)
Polygonum cilinode Michx. Synonym M TRO
Polygonum cilinode var. erectum Peck Synonym L TRO
Polygonum cilinode var. laevigatum Fernald Synonym L TRO
Polygonum ciliosum Meisn. Unresolved L WCSP (in review)
Polygonum cirrhosum Moc. & Sessé ex Meisn. Unresolved L WCSP (in review)
Polygonum clarkei C.W.Park Unresolved L WCSP (in review)
Polygonum claviculatum Meisn. Unresolved L WCSP (in review)
Polygonum cliffortioides Meisn. Unresolved L WCSP (in review)
Polygonum coarctatum Willd. ex Spreng. Unresolved L WCSP (in review)
Polygonum coarctatum var. majus Meisn. Synonym L TRO
Polygonum coccineum Muhl. ex Willd. Synonym M TRO
Polygonum coccineum f. natans (Wiegand) Stanford Unresolved L TRO
Polygonum coccineum var. pratincola (Greene) Stanford Synonym L TRO
Polygonum coccineum var. rigidulum (E. Sheld.) Stanford Synonym L TRO
Polygonum coccineum f. terrestre (Willd.) Stanford Unresolved L TRO
Polygonum coccineum var. terrestre Willd. Synonym L TRO
Polygonum coccoloba Steud. Unresolved L WCSP (in review)
Polygonum cochinchinense Meisn. Synonym M WCSP (in review)
Polygonum cognatum Meisn. Accepted M WCSP (in review)
Polygonum cognatum var. alpestre (C.A. Mey.) Meisn. Synonym L TRO
Polygonum cognatum subsp. chitralicum (Rech. f. & Schiman-Czeika) Qaiser Accepted L TRO
Polygonum cognatum subsp. cognatum Synonym L TRO
Polygonum collare Mart. ex Meisn. Unresolved L WCSP (in review)
Polygonum commixtum Greene Unresolved L WCSP (in review)
Polygonum compactum Hook.f. Synonym M WCSP (in review)
Polygonum complexum A.Cunn. Synonym M WCSP (in review)
Polygonum comptonianum Meisn. Unresolved L WCSP (in review)
Polygonum condensatum Schultz ex Nyman Unresolved L WCSP (in review)
Polygonum confertiflorum Nutt. ex Piper Synonym M WCSP (in review)
Polygonum confertum Royle ex Bab. Unresolved L WCSP (in review)
Polygonum confusum Meisn. Unresolved L WCSP (in review)
Polygonum consimile Greene Unresolved L WCSP (in review)
Polygonum conspersum Meisn. Unresolved L WCSP (in review)
Polygonum conspicuum (Nakai) Nakai Synonym M TRO
Polygonum constans Cummins Synonym L TRO
Polygonum controversum Guss. Unresolved L WCSP (in review)
Polygonum convolvulaceum Lam. Unresolved L WCSP (in review)
Polygonum convolvuliforme St.-Lag. Unresolved L WCSP (in review)
Polygonum × convolvuloides Brügger Unresolved L WCSP (in review)
Polygonum convolvulus L. Synonym M WCSP (in review)
Polygonum convolvulus var. pauciflorum (Maxim.) Vorosch. Synonym L TRO
Polygonum cordatum Meisn. Unresolved L WCSP (in review)
Polygonum cordobense Lindau Synonym M TRO
Polygonum coriaceum Sam. Accepted M TRO
Polygonum coriarium Grig. Accepted M TRO
Polygonum coronulatum Steud. Unresolved L WCSP (in review)
Polygonum corrigioloides Jaub. & Spach Accepted M TRO
Polygonum corsiuanum Link Unresolved L WCSP (in review)
Polygonum corymbosum Willd. Unresolved L WCSP (in review)
Polygonum covilei Fedde Unresolved L TRO
Polygonum crassicaule Raf. Unresolved L WCSP (in review)
Polygonum crassifolium Murray Unresolved L WCSP (in review)
Polygonum crassinerve Ces. Unresolved L WCSP (in review)
Polygonum crassum Lojac. Unresolved L WCSP (in review)
Polygonum crenatum Ehrenb. ex Meisn. Unresolved L WCSP (in review)
Polygonum cretaceum Kom. Synonym M WCSP (in review)
Polygonum criopolitanum Hance Accepted M TRO
Polygonum crispatum C.B.Clarke Unresolved L WCSP (in review)
Polygonum crispatum Gand. Unresolved L WCSP (in review)
Polygonum crispulum Sims Unresolved L WCSP (in review)
Polygonum crispum Hornem. Unresolved L WCSP (in review)
Polygonum cristatum Engelm. & A. Gray Synonym M TRO
Polygonum cumingianum Gand. Unresolved L WCSP (in review)
Polygonum cunninghamii Meisn. Unresolved L WCSP (in review)
Polygonum cusickii (Greene) Fedde Unresolved L WCSP (in review)
Polygonum cuspidatum Willd. ex Spreng. [Unplaced] Unresolved L WCSP (in review)
Polygonum cuspidatum Siebold & Zucc. Synonym M WCSP (in review)
Polygonum cuspidatum var. spectabile Noter Synonym L WCSP (in review)
Polygonum cyanandrum Diels Accepted M TRO
Polygonum cymosum Trevir. Synonym M WCSP (in review)
Polygonum cynanchoides Hemsl. Synonym M TRO
Polygonum cynanchoides var. glabriusculum A.J. Li Synonym L TRO
Polygonum czukavinae Soják Unresolved L WCSP (in review)
Polygonum damrongianum Hosseus Unresolved L WCSP (in review)
Polygonum danubiale A.Kern. Unresolved L WCSP (in review)
Polygonum daphnophyllum Andrz. Unresolved L WCSP (in review)
Polygonum daphnophyllum Andrz. ex Meisn. Unresolved L WCSP (in review)
Polygonum darrisii H. Lév. Accepted M TRO
Polygonum davisiae W.H. Brewer ex A. Gray Synonym L TRO
Polygonum davuricum Willd. ex Spreng. Unresolved L WCSP (in review)
Polygonum deasyi Rendle Unresolved L WCSP (in review)
Polygonum debeauxii Legrand Unresolved L WCSP (in review)
Polygonum debile Meisn. Unresolved L WCSP (in review)
Polygonum debilius Gand. Unresolved L WCSP (in review)
Polygonum deciduum Boiss. & Noe ex Meissn. Synonym M TRO
Polygonum decipiens R.Br. Synonym M WCSP (in review)
Polygonum declinatum Vell. Synonym M WCSP (in review)
Polygonum decumbens P.Fourn. ex Vindt Unresolved L WCSP (in review)
Polygonum decumbens Bruyn Unresolved L WCSP (in review)
Polygonum decumbens Schur Unresolved L WCSP (in review)
Polygonum deflexipilosum Kitam. Synonym L TRO
Polygonum delfini Phil. Unresolved L WCSP (in review)
Polygonum delicatulum Meisn. Accepted M TRO
Polygonum delopyrum T.M. Schust. & Reveal Unresolved L TRO
Polygonum deloynei Gand. Unresolved L WCSP (in review)
Polygonum densiflorum Meisn. [Illegitimate] Synonym M WCSP (in review)
Polygonum densiflorum Blume Accepted M TRO
Polygonum densiflorum var. ciliolatum Meisn. ex A. DC. Synonym L TRO
Polygonum densiflorum f. ciliolatum (Meisn. ex A. DC.) Fassett Accepted L TRO
Polygonum densiflorum var. imberbe Meisn. ex A. DC. Synonym L TRO
Polygonum densiflorum f. imberbe (Meisn. ex A. DC.) Fassett Accepted L TRO
Polygonum dentatoalatum F.Schmidt Synonym M WCSP (in review)
Polygonum denticulatum C.C. Huang Synonym M TRO
Polygonum dentoceras T.M. Schust. & Reveal Unresolved L TRO
Polygonum denudatum Boreau Unresolved L WCSP (in review)
Polygonum depressum A.Cunn. ex Meisn. Unresolved L WCSP (in review)
Polygonum dibotrys D.Don Synonym M WCSP (in review)
Polygonum dichotomum Blume Synonym M TRO
Polygonum diclinum F.Muell. Unresolved L WCSP (in review)
Polygonum dielsii H. Lév. Synonym M TRO
Polygonum dietrichiae Domin Unresolved L WCSP (in review)
Polygonum difficile Gand. Unresolved L WCSP (in review)
Polygonum diffusum Pall. ex Spreng. Unresolved L WCSP (in review)
Polygonum digeneum Rouy Unresolved L WCSP (in review)
Polygonum dioicum Buch.-Ham. ex Meisn. Unresolved L WCSP (in review)
Polygonum diospyrifolium Cham. & Schltdl. Accepted M TRO
Polygonum dissitiflorum Hemsl. Accepted M TRO
Polygonum distachyum Mart. ex Meisn. Unresolved L WCSP (in review)
Polygonum distichus Kunth Unresolved L TRO
Polygonum divaricatum L. Accepted M TRO
Polygonum divaricatum f. glabrum Meisn. Synonym L TRO
Polygonum divaricatum var. limosum Kom. Synonym L TRO
Polygonum dolichopodum Ohki Synonym M WCSP (in review)
Polygonum dombeyanum Kuntze Synonym M TRO
Polygonum donianum Spreng. Synonym M TRO
Polygonum donii Meisn. Synonym M TRO
Polygonum douglasii Greene Accepted M WCSP (in review)
Polygonum douglasii var. austinae (Greene) M.E.Jones Synonym L WCSP (in review)
Polygonum douglasii subsp. austiniae (Greene) A.E.Murray Accepted L WCSP (in review)
Polygonum douglasii var. douglasii Synonym L TRO
Polygonum douglasii subsp. engelmannii (Greene) J.T.Kartesz & Gandhi Accepted L WCSP (in review)
Polygonum douglasii subsp. johnstonii (Munz) J.C.Hickman Accepted L WCSP (in review)
Polygonum douglasii var. johnstonii Munz Synonym L WCSP (in review)
Polygonum douglasii var. latifolium (Engelm.) Greene Synonym L TRO
Polygonum douglasii subsp. majus (Meisn.) J.C. Hickman Synonym L TRO
Polygonum douglasii var. microspermum (Engelm.) Dorn Accepted L TRO
Polygonum douglasii var. montanum Small Synonym L TRO
Polygonum douglasii subsp. nuttallii (Small) J.C. Hickman Synonym L TRO
Polygonum douglasii subsp. spergulariiforme (Meisn. ex Small) J.C. Hickman Synonym L TRO
Polygonum douglasii var. utahense (Brenckle & Cottam) S.L. Welsh Synonym L TRO
Polygonum dracunculifolium Boiss. Unresolved L WCSP (in review)
Polygonum dregeanum Meisn. Unresolved L WCSP (in review)
Polygonum dregei Meisn. Unresolved L WCSP (in review)
Polygonum dryandri Spreng. Synonym M TRO
Polygonum dshawachischwilii Kharkev. Accepted M TRO
Polygonum dubium Stein ex A. Br. Accepted M TRO
Polygonum duclouxii H. Lév. & Vaniot Synonym M TRO
Polygonum dumetorum L. Synonym M WCSP (in review)
Polygonum dumetorum f. cristatum (Engelm. & A. Gray) B.L. Rob. Synonym L TRO
Polygonum dumetorum var. scandens (L.) A. Gray Synonym L TRO
Polygonum dumosum Boiss. Unresolved L WCSP (in review)
Polygonum durum Brenckle Unresolved L WCSP (in review)
Polygonum ebracteatum Munshi & Javeid Synonym M WCSP (in review)
Polygonum eciliatum W.Stone Unresolved L WCSP (in review)
Polygonum effusum Meisn. Accepted M TRO
Polygonum ehrenbergii Meisn. Unresolved L WCSP (in review)
Polygonum ekimianum Leblebici, H.Duman & Aytaç Unresolved L WCSP (in review)
Polygonum elatius R.Br. Unresolved L WCSP (in review)
Polygonum elatiusculum Gand. Unresolved L WCSP (in review)
Polygonum elegans Ten. [Illegitimate] Unresolved L WCSP (in review)
Polygonum ellipticum Willd. ex Spreng. Accepted M TRO
Polygonum elongatum Sennen & Elías Unresolved L WCSP (in review)
Polygonum emaciatum A.Nelson Unresolved L WCSP (in review)
Polygonum emarginatum Roth Synonym M TRO
Polygonum emersum (Michx.) Britton Synonym M TRO
Polygonum emodi Meisn. Accepted M TRO
Polygonum emodi var. dependens Diels Accepted L TRO
Polygonum emodi var. emodi Synonym L TRO
Polygonum engelmannii Greene Synonym M WCSP (in review)
Polygonum englerianum H. Gross Synonym M TRO
Polygonum ensigerum Juz. Accepted M TRO
Polygonum ephedrodes Kuntze Unresolved L WCSP (in review)
Polygonum ephedroides Hook.f. Unresolved L WCSP (in review)
Polygonum epilobioides Wedd. Synonym M WCSP (in review)
Polygonum equisetiforme Sm. Accepted M WCSP (in review)
Polygonum erectominus Makino Unresolved L WCSP (in review)
Polygonum erectum L. Accepted M TRO
Polygonum erectum subsp. achoreum (S.F. Blake) Á. Löve & D. Löve Synonym L TRO
Polygonum erythranthum Gand. Unresolved L WCSP (in review)
Polygonum erythrocladum Gand. Unresolved L WCSP (in review)
Polygonum erythrodes Miq. Unresolved L WCSP (in review)
Polygonum erythropus Dammer Unresolved L WCSP (in review)
Polygonum esotericum L.C. Wheeler Synonym M TRO
Polygonum esquirolii H. Lév. Synonym L TRO
Polygonum euryale Gand. Unresolved L WCSP (in review)
Polygonum eurybelonum Danser Unresolved L WCSP (in review)
Polygonum euryphyllum Danser Unresolved L WCSP (in review)
Polygonum euxinum Chrtek Unresolved L WCSP (in review)
Polygonum excurrens Steward Synonym M TRO
Polygonum exiguum Meisn. Unresolved L WCSP (in review)
Polygonum exile Eastw. Synonym M TRO
Polygonum exsertum Small Synonym M TRO
Polygonum extremiorientale Vorosch. Synonym M WCSP (in review)
Polygonum fagopyrum L. Synonym M WCSP (in review)
Polygonum fallacinum Gand. Unresolved L WCSP (in review)
Polygonum fallax Small Accepted M TRO
Polygonum fasciculatum Sessé & Moc. Unresolved L WCSP (in review)
Polygonum fastigiatoramosum Makino Unresolved L WCSP (in review)
Polygonum fastigiatum Raf. Unresolved L WCSP (in review)
Polygonum fauriei H. Lév. & Vaniot Synonym M TRO
Polygonum ferrugineum Wedd. Synonym M WCSP (in review)
Polygonum ferrugineum var. incanum (Meisn.) Small Unresolved L TRO
Polygonum ferrugineum var. patagonicum (Speg.) Macloskie Synonym L TRO
Polygonum fertile (Maxim.) A.J. Li Accepted M TRO
Polygonum fibrilliferum Kom. Unresolved L WCSP (in review)
Polygonum figertii Beck Unresolved L WCSP (in review)
Polygonum filicaule Wall. ex Meisn. Accepted L WCSP (in review)
Polygonum filiforme Thunb. Synonym L TRO
Polygonum filiforme subsp. neofiliforme (Nakai) Kitam. Synonym L TRO
Polygonum filiforme var. neofiliforme (Nakai) Ohwi Synonym L TRO
Polygonum fimbriatum Elliott Synonym M TRO
Polygonum fissum Blume Unresolved L WCSP (in review)
Polygonum fistulosum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum flaccidum Meisn. Synonym M TRO
Polygonum flaccidum var. hispidum (Buch.-Ham. ex D. Don) Hook. f. Synonym L TRO
Polygonum flagellare Spreng. Unresolved L WCSP (in review)
Polygonum flagellare Bertol. ex Sebast. & Mauri Unresolved L WCSP (in review)
Polygonum flagelliforme Loisel. Unresolved L WCSP (in review)
Polygonum flagelliforme Wedd. Unresolved L WCSP (in review)
Polygonum flavescens Jord. ex Nyman Unresolved L WCSP (in review)
Polygonum flexile Greene Unresolved L WCSP (in review)
Polygonum flexuosum Benth. Synonym M TRO
Polygonum floribundum Schltdl. ex Spreng. Accepted M WCSP (in review)
Polygonum floribundum Wedd. Synonym M TRO
Polygonum floridum Borbás Unresolved L WCSP (in review)
Polygonum florulentum Kuntze Unresolved L WCSP (in review)
Polygonum fluitans Eaton Synonym M TRO
Polygonum fluviatile Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum fluviatile Buch.-Ham. ex Endl. Unresolved L WCSP (in review)
Polygonum foliosum H.Lindb. Synonym M WCSP (in review)
Polygonum foliosum var. paludicola (Makino) Kitam. Unresolved L TRO
Polygonum forbesii Hance Synonym M WCSP (in review)
Polygonum forrestii Diels Accepted M TRO
Polygonum forrestii var. pumilio Lingelsh. Synonym L TRO
Polygonum forsteri Hook.f. Unresolved L WCSP (in review)
Polygonum forsteri Endl. Unresolved L WCSP (in review)
Polygonum fowleri B.L. Rob. Accepted M TRO
Polygonum fowleri subsp. fowleri Synonym L TRO
Polygonum fowleri subsp. hudsonianum (S.J. Wolf & McNeill) Costea & Tardif Accepted L TRO
Polygonum fragile Sumner Synonym M TRO
Polygonum franchetii Vorosch. Accepted M TRO
Polygonum franciscanum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum franktonii S.J. Wolf & McNeill Accepted M TRO
Polygonum frigidum Kudô Unresolved L WCSP (in review)
Polygonum frondosum Meisn. Unresolved L WCSP (in review)
Polygonum frutescens L. Synonym M TRO
Polygonum fruticosum S.G.Gmel. ex Meisn. Unresolved L WCSP (in review)
Polygonum fruticulosum Walp. Synonym M TRO
Polygonum fugax Small Unresolved L WCSP (in review)
Polygonum fusco-ochreatum Kom. Synonym M WCSP (in review)
Polygonum fusco-ochreatum f. stans (Kitag.) C.F.Fang Synonym L WCSP (in review)
Polygonum fusiforme Greene Synonym M TRO
Polygonum gabrielae Costea & Tardif Unresolved L WCSP (in review)
Polygonum galapagense Caruel Accepted M TRO
Polygonum gallicum Raffaelli Synonym M WCSP (in review)
Polygonum ganderbalense Munshi & Javeid Synonym M WCSP (in review)
Polygonum geniculatum Bellardi ex Colla Unresolved L WCSP (in review)
Polygonum geniculatum Riddell ex Meisn. Unresolved L WCSP (in review)
Polygonum geniculatum Poir. Unresolved L WCSP (in review)
Polygonum gentilianum (H. Lév.) H. Lév. Synonym M TRO
Polygonum gilesii Hemsl. Synonym M TRO
Polygonum giranense Ohki Unresolved L WCSP (in review)
Polygonum glaberrimum Kitam. Synonym L TRO
Polygonum glabratum Meisn. Unresolved L WCSP (in review)
Polygonum glabrum Willd. Synonym M WCSP (in review)
Polygonum glaciale (Meisn.) Hook. f. Accepted M TRO
Polygonum glaciale var. glaciale Synonym L TRO
Polygonum glaciale var. przewalskii (A.K. Skvortsov & Borodina) A.J. Li Accepted L TRO
Polygonum glanduliferum Nakai Synonym M TRO
Polygonum glandulopilosum De Wild. Synonym M WCSP (in review)
Polygonum glandulosum Subba Rao Unresolved L WCSP (in review)
Polygonum glandulosum Poir. Unresolved L WCSP (in review)
Polygonum glandulosum R.Br. Unresolved L WCSP (in review)
Polygonum glandulosum Kitt. Unresolved L WCSP (in review)
Polygonum glareosum Schischk. Synonym M TRO
Polygonum glastifolium Greene Unresolved L WCSP (in review)
Polygonum glaucescens N.A.Ivanova ex Tupitz. Unresolved L WCSP (in review)
Polygonum glaucochloros Gand. Unresolved L WCSP (in review)
Polygonum glaucum Nutt. Accepted M WCSP (in review)
Polygonum globispicum (Nakai) C.W.Park Unresolved L WCSP (in review)
Polygonum glomeratum Dammer Synonym M WCSP (in review)
Polygonum gloriosum H. Lév. Synonym M TRO
Polygonum glutinosum Wall. Unresolved L WCSP (in review)
Polygonum glutinosum var. capensis Hedw. Synonym L TRO
Polygonum gmelinii Steud. Unresolved L WCSP (in review)
Polygonum gmelinii Meisn. Unresolved L WCSP (in review)
Polygonum goyalpara Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum goyalparae Buch.-Ham. ex Endl. Unresolved L WCSP (in review)
Polygonum gracile Meisn. Unresolved L WCSP (in review)
Polygonum gracile Guss. Unresolved L WCSP (in review)
Polygonum gracile Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum gracile Salisb. Unresolved L WCSP (in review)
Polygonum gracile Reinw. ex Miq. Unresolved L WCSP (in review)
Polygonum gracile Nutt. Unresolved L WCSP (in review)
Polygonum gracile R.Br. Unresolved L WCSP (in review)
Polygonum gracilescens Mart. ex Meisn. Unresolved L WCSP (in review)
Polygonum gracilipes Hemsl. Synonym M TRO
Polygonum gracilipes var. odonotopterum (H. Gross) Sam. Synonym L TRO
Polygonum gracilius (Ledeb.) Klokov Synonym M WCSP (in review)
Polygonum gracillimum Spreng. Unresolved L WCSP (in review)
Polygonum gracillimum Kuntze Unresolved L WCSP (in review)
Polygonum gramineum Noronha Unresolved L WCSP (in review)
Polygonum gramineum Meisn. Unresolved L WCSP (in review)
Polygonum graminifolium Wierzb. ex Heuff. Unresolved L WCSP (in review)
Polygonum graminifolium Hoffm. ex Meisn. Unresolved L WCSP (in review)
Polygonum grandiflorum Bertol. [Illegitimate] Synonym M WCSP (in review)
Polygonum grandifolium (Greene) Fedde Unresolved L WCSP (in review)
Polygonum greenei S. Watson Synonym M TRO
Polygonum griffithii Hook. f. Accepted M TRO
Polygonum grossii H. Lév. Synonym M TRO
Polygonum guatemalense Gand. Synonym M WCSP (in review)
Polygonum gummifera Wedd. Synonym M TRO
Polygonum gunnii Hook.f. Unresolved L WCSP (in review)
Polygonum gussonei Tod. Accepted M WCSP (in review)
Polygonum guttuliferum Miq. ex Hook.f. Unresolved L WCSP (in review)
Polygonum guttuliferum Miq. ex Meisn. Unresolved L WCSP (in review)
Polygonum gymnopus Franch. & Sav. Unresolved L WCSP (in review)
Polygonum hachidyoense Makino Synonym M WCSP (in review)
Polygonum hagei Royle ex Bab. Unresolved L WCSP (in review)
Polygonum hamiltonii Spreng. Unresolved L WCSP (in review)
Polygonum hamiltonii Meisn. Unresolved L WCSP (in review)
Polygonum hangchouense Matsuda Synonym M TRO
Polygonum hartwrightii A. Gray Synonym M TRO
Polygonum hassanabdalicum Chaudhri Unresolved L WCSP (in review)
Polygonum hastatoauriculatum Makino ex Nakai Synonym M TRO
Polygonum hastatosagittatum Makino Accepted M TRO
Polygonum hastatosagittatum var. latifolium Makino Synonym L TRO
Polygonum hastatotrilobum Meisn. Synonym M TRO
Polygonum hastatotrilobum var. lenticulare Danser Synonym L TRO
Polygonum hastatum Murray Unresolved L WCSP (in review)
Polygonum hastatum Bojer & Hils. ex Baker Unresolved L WCSP (in review)
Polygonum hastatum Zoll. & Moritzi Unresolved L WCSP (in review)
Polygonum hastulatum (Sm.) Kuntze Synonym L TRO
Polygonum hayachinense Makino Unresolved L WCSP (in review)
Polygonum hayi Strachey & Winterb. ex Meisn. Unresolved L WCSP (in review)
Polygonum hecasanthum Schur Unresolved L WCSP (in review)
Polygonum hermonis Kotschy ex Boiss. Unresolved L WCSP (in review)
Polygonum herniarioides Spreng. Synonym M WCSP (in review)
Polygonum hesperium (Greene) Fedde Unresolved L WCSP (in review)
Polygonum × heterocarpum Beck Unresolved L WCSP (in review)
Polygonum heterophyllum Lindm. [Illegitimate] Synonym M WCSP (in review)
Polygonum heterophyllum var. angustissimum (Meisn.) Lindm. Synonym L WCSP (in review)
Polygonum heterophyllum subsp. boreale (Lange) Á. Löve & D. Löve Synonym L TRO
Polygonum heterophyllum var. caespitosum Lindm. Synonym L WCSP (in review)
Polygonum heterophyllum var. eximium Lindm. Synonym L WCSP (in review)
Polygonum heterophyllum var. rubescens (Small) R.J.Davis Synonym L WCSP (in review)
Polygonum heterophyllum f. rubescens (Small) Brenckle Synonym L WCSP (in review)
Polygonum heterophyllum subsp. rurivagum (Jord. ex Boreau) Lindm. Synonym L WCSP (in review)
Polygonum heterosepalum M. Peck & Ownbey Accepted M TRO
Polygonum hickmanii H.R. Hinds & Rand. Morgan Accepted M TRO
Polygonum hidropiper Neck. Unresolved L WCSP (in review)
Polygonum himalayense H. Gross Synonym M TRO
Polygonum hippopotami Ehrenb. ex Meisn. Unresolved L WCSP (in review)
Polygonum hirsutum Walter Synonym M TRO
Polygonum hirtovaginum Gand. Unresolved L WCSP (in review)
Polygonum hirtum Ruiz & Pav. Unresolved L WCSP (in review)
Polygonum hirtum Willd. ex Spreng. Unresolved L WCSP (in review)
Polygonum hispidulum Blume Unresolved L WCSP (in review)
Polygonum hispidum Kunth Synonym M WCSP (in review)
Polygonum hispidum Buch.-Ham. ex D. Don Synonym M TRO
Polygonum hissaricum Popov Accepted M TRO
Polygonum hololeion Peter Unresolved L WCSP (in review)
Polygonum holotrichum Peter Unresolved L WCSP (in review)
Polygonum homalostachyum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum honanense H.W. Kung Accepted M TRO
Polygonum hookeri Meisn. Accepted M TRO
Polygonum hornemannii Meisn. Unresolved L WCSP (in review)
Polygonum horridum Buch.-Ham. ex Roxb. Unresolved L WCSP (in review)
Polygonum howellii Greene Unresolved L WCSP (in review)
Polygonum huananense A.J. Li Accepted M TRO
Polygonum hubertii Lingelsh. Synonym M TRO
Polygonum hudsonianum (S.J. Wolf & McNeill) H.R. Hinds Synonym M TRO
Polygonum huichunense F.Z. Li, Y.T. Hou & C.Y. Qu Accepted M TRO
Polygonum humifixum Gand. Unresolved L WCSP (in review)
Polygonum humifusum C. Merck ex K. Koch Accepted M TRO
Polygonum humifusum subsp. caurianum (B.L. Rob.) Costea & Tardif Accepted L TRO
Polygonum humifusum var. mandshuricum Skvortsov Synonym L TRO
Polygonum humifusum f. yamatutae (Kitag.) C.F. Fang Synonym L TRO
Polygonum humile Meisn. Accepted M TRO
Polygonum humirepens Gand. Unresolved L WCSP (in review)
Polygonum hybridum Chaub. Synonym M TRO
Polygonum hydrophilum Peter Unresolved L WCSP (in review)
Polygonum hydropiper L. Synonym M WCSP (in review)
Polygonum hydropiper var. acuminatum Franch. & Sav. Synonym L TRO
Polygonum hydropiper var. flaccidum (Meisn.) Steward Synonym L TRO
Polygonum hydropiper var. hispidum (Buch.-Ham. ex D. Don) Steward Synonym L TRO
Polygonum hydropiper var. longistachyum Y.L. Chang & S.X. Li Synonym L TRO
Polygonum hydropiper subsp. microcarpum Danser Synonym L TRO
Polygonum hydropiper var. projectum Stanford Synonym L TRO
Polygonum hydropiper var. vulgare Meisn. Synonym L TRO
Polygonum hydropiperoides Michx. Synonym M WCSP (in review)
Polygonum hydropiperoides var. adenocalyx (Stanford) Gleason Unresolved L TRO
Polygonum hydropiperoides var. asperifolium Stanford Synonym L TRO
Polygonum hydropiperoides var. bushianum Stanford Synonym L TRO
Polygonum hydropiperoides var. digitatum Fernald Synonym L TRO
Polygonum hydropiperoides f. leucochranthum A.H. Moore Synonym L TRO
Polygonum hydropiperoides var. macerum Stanford Synonym L TRO
Polygonum hydropiperoides var. macounii Small Synonym L TRO
Polygonum hydropiperoides var. opelousanum (Riddell ex Small) W. Stone Unresolved L TRO
Polygonum hydropiperoides var. persicarioides (Kunth) Stanford Synonym L TRO
Polygonum hydropiperoides var. sanibelense Stanford Synonym L TRO
Polygonum hydropiperoides var. setaceum (Baldwin) Gleason Unresolved L TRO
Polygonum hydropiperoides subsp. setaceum (Baldwin) M. Dalci Synonym L TRO
Polygonum hydropiperoides f. strigosum (Small) Stanford Synonym L TRO
Polygonum hydropiperoides var. strigosum Small Synonym L TRO
Polygonum hydropiperoides var. virgatum (Cham. & Schltdl.) Meisn. Synonym L TRO
Polygonum hygrogenes Gand. Unresolved L WCSP (in review)
Polygonum hypanicum Klokov Synonym M WCSP (in review)
Polygonum hypoleucum (Nakai) Kudô & Sasaki [Invalid] Synonym M WCSP (in review)
Polygonum hypoleucum Ohwi Synonym M WCSP (in review)
Polygonum hypostictum Miq. ex Meisn. Unresolved L WCSP (in review)
Polygonum hypostictum Miq. ex Hook.f. Unresolved L WCSP (in review)
Polygonum hyrcanicum Rech.f. Unresolved L WCSP (in review)
Polygonum hyssopifolium Bojer Unresolved L WCSP (in review)
Polygonum hystriculum J.Schust. Synonym M WCSP (in review)
Polygonum icaricum Rech.f. Accepted M WCSP (in review)
Polygonum idaeum Hayek Accepted M WCSP (in review)
Polygonum ilanense Y.C.Liu & C.H.Ou Unresolved L WCSP (in review)
Polygonum illecebroides Meisn. Unresolved L WCSP (in review)
Polygonum ilophilum Gand. Unresolved L WCSP (in review)
Polygonum imberbe Sol. ex G.Forst. Unresolved L WCSP (in review)
Polygonum imbricatum Nutt. ex S.Watson Unresolved L WCSP (in review)
Polygonum imbricatum Raf. Unresolved L WCSP (in review)
Polygonum imeretinum Kom. Accepted M TRO
Polygonum incanum F.W.Schmidt Synonym M WCSP (in review)
Polygonum incarnatum Elliott Synonym M TRO
Polygonum indicum B.Heyne Unresolved L WCSP (in review)
Polygonum induratum Asch. & Barbey ex E.A.Durand & Barratte Unresolved L WCSP (in review)
Polygonum infestum Salisb. Unresolved L WCSP (in review)
Polygonum inflexum Kom. Accepted M TRO
Polygonum injucunda Lindl. Synonym M TRO
Polygonum injucundum Lindl. Unresolved L WCSP (in review)
Polygonum insigne (Greene) Fedde Unresolved L WCSP (in review)
Polygonum insulare Lojac. Unresolved L WCSP (in review)
Polygonum insulare M.M.Maksimova Unresolved L WCSP (in review)
Polygonum intercedens Petrov ex Kom. Synonym M TRO
Polygonum interior Brenckle Synonym M TRO
Polygonum intermedium Ehrh. Unresolved L WCSP (in review)
Polygonum intermedium Robert ex Loisel. Unresolved L WCSP (in review)
Polygonum intermedium Nutt. ex S.Watson Unresolved L WCSP (in review)
Polygonum intermedium Kit. ex Rochel Unresolved L WCSP (in review)
Polygonum intermixtum Gand. Unresolved L WCSP (in review)
Polygonum interruptellum Gand. Unresolved L WCSP (in review)
Polygonum interruptum Bunge Synonym M TRO
Polygonum intramongolicum Borodina Accepted M TRO
Polygonum intricatum Kom. Synonym M TRO
Polygonum inundatum Mart. ex Meisn. Unresolved L WCSP (in review)
Polygonum inundatum Raf. Unresolved L WCSP (in review)
Polygonum iowense (Rydb.) Cratty Unresolved L WCSP (in review)
Polygonum iseanum Makino Unresolved L WCSP (in review)
Polygonum islandicum (L.) Hook.f. Synonym M WCSP (in review)
Polygonum istanbulicum M.Keskin Accepted M WCSP (in review)
Polygonum ituripense Mischurov Unresolved L TRO
Polygonum janatae Klokov Synonym M WCSP (in review)
Polygonum janoviense Zapał. Unresolved L WCSP (in review)
Polygonum japonicum Meisn. Accepted M TRO
Polygonum japonicum f. brevistylum Nakai Synonym L TRO
Polygonum japonicum var. conspicuum Nakai Accepted L TRO
Polygonum japonicum var. japonicum Synonym L TRO
Polygonum japonicum var. micranthum Nakai Synonym L TRO
Polygonum japonicum var. taitoinsulare Masam. Unresolved L WCSP (in review)
Polygonum javanicum Bruyn Unresolved L WCSP (in review)
Polygonum jaxarticum Sumner Synonym M TRO
Polygonum jeholense (Kitag.) Baranov & Skvortsov ex S.X. Li & Y.L. Chang Synonym M TRO
Polygonum jejunum Greene Unresolved L WCSP (in review)
Polygonum jucundum Meisn. Accepted M TRO
Polygonum junceum Ledeb. Accepted M TRO
Polygonum jurii A.K. Skvortsov Accepted M TRO
Polygonum kakaii (H.Hara) Makino Unresolved L WCSP (in review)
Polygonum karacae Ziel. & Borat. Unresolved L WCSP (in review)
Polygonum kawagoeanum Makino Accepted M TRO
Polygonum kawakamii Ohki Unresolved L WCSP (in review)
Polygonum kelloggii Greene Synonym M WCSP (in review)
Polygonum kelloggii var. confertiflorum (Nutt. ex Piper) Dorn Synonym L TRO
Polygonum kermesinum Kingdon-Ward Unresolved L WCSP (in review)
Polygonum khajeh-jamali Khosravi & Poormahdi Unresolved L WCSP (in review)
Polygonum kinashii H. Lév. & Vaniot Synonym M TRO
Polygonum kirinense S.X. Li & Y.L. Chang Synonym M TRO
Polygonum kitaibelianum Sadler Synonym M WCSP (in review)
Polygonum kolumense A.P.Khokhr. Unresolved L WCSP (in review)
Polygonum komarovii H. Lév. Synonym M TRO
Polygonum koreense Nakai Unresolved L WCSP (in review)
Polygonum koreense f. viridiflorum S.X. Li & Y.L. Chang Synonym L TRO
Polygonum korotkovae Sumner Synonym M TRO
Polygonum korshinskianum Nakai Synonym M TRO
Polygonum korthalsii Gand. Unresolved L WCSP (in review)
Polygonum kotoshoense Ohki Synonym M TRO
Polygonum kotovii Klokov Synonym M WCSP (in review)
Polygonum kotschyanum Boiss. Unresolved L WCSP (in review)
Polygonum krascheninnikovii Czerep. Accepted M TRO
Polygonum krasseri Rech. Unresolved L WCSP (in review)
Polygonum kudriaschevii Vassilkovsk. Unresolved L WCSP (in review)
Polygonum kudrjaschevii Vassilkovsk. Synonym M TRO
Polygonum kuekenthalii H. Lév. Synonym M TRO
Polygonum kumaonum Subba Rao & Kumari Unresolved L WCSP (in review)
Polygonum kuntzei P.Fourn. Unresolved L WCSP (in review)
Polygonum kurilense Tatew. Unresolved L WCSP (in review)
Polygonum labordei H.Lév. & Vaniot Synonym M WCSP (in review)
Polygonum lacerum Kunth Accepted M TRO
Polygonum lacunosum Gand. Unresolved L WCSP (in review)
Polygonum laetevirens (Greene) Fedde Unresolved L WCSP (in review)
Polygonum lamellosum Gand. Unresolved L WCSP (in review)
Polygonum lanatum Roxb. Synonym M TRO
Polygonum lanceifolium Danser Unresolved L WCSP (in review)
Polygonum lanceolatum Gand. Unresolved L WCSP (in review)
Polygonum langeanum Rouy Unresolved L WCSP (in review)
Polygonum langloisii (Greene) Fedde Unresolved L WCSP (in review)
Polygonum lanigerum R.Br. Synonym M WCSP (in review)
Polygonum lanigerum var. africanum Meisn. Synonym L WCSP (in review)
Polygonum lanigerum var. cristatum Hemsl. Synonym L TRO
Polygonum lapathifolium L. Synonym M WCSP (in review)
Polygonum lapathifolium subsp. brittingeri Rech. f. Synonym L TRO
Polygonum lapathifolium var. glabrum Burtt Davy Synonym L TRO
Polygonum lapathifolium var. incanum (F.W. Schmidt) W.D.J. Koch Synonym L TRO
Polygonum lapathifolium var. incanum Ledeb. Synonym L TRO
Polygonum lapathifolium var. lanatum (Roxb.) Steward Unresolved L TRO
Polygonum lapathifolium var. lanigerum (R.Br.) C.Moore & Betche Synonym L WCSP (in review)
Polygonum lapathifolium var. lapathifolium Unresolved L TRO
Polygonum lapathifolium subsp. maculatum T.-Dyer & Trim. Unresolved L TRO
Polygonum lapathifolium var. maculatum T.-Dyer & Trim. Synonym L TRO
Polygonum lapathifolium subsp. mesomorphum Danser Unresolved L WCSP (in review)
Polygonum lapathifolium f. nodosum (Pers.) Beck Synonym L WCSP (in review)
Polygonum lapathifolium var. nodosum (Pers.) Hook.f. Synonym L WCSP (in review)
Polygonum lapathifolium subsp. nodosum (Pers.) Weinm. Synonym L TRO
Polygonum lapathifolium var. ovatum A. Br. Synonym L TRO
Polygonum lapathifolium var. salicifolium Sibth. Synonym L TRO
Polygonum lapathifolium var. xanthophyllum H.W. Kung Synonym L TRO
Polygonum lapidosum (Kitag.) Kitag. Synonym M WCSP (in review)
Polygonum latifolium Giesecke ex Lange Unresolved L WCSP (in review)
Polygonum latifolium Kotschy ex Boiss. Unresolved L WCSP (in review)
Polygonum latum Small ex Rydb. Synonym M TRO
Polygonum laurinum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum laxiflorum Weihe Unresolved L WCSP (in review)
Polygonum laxiflorum Pall. ex Meisn. Unresolved L WCSP (in review)
Polygonum laxmannii Lepech. Synonym L WCSP (in review)
Polygonum laxum Rchb. Unresolved L WCSP (in review)
Polygonum lemannianum Meisn. Unresolved L TRO
Polygonum lencoranicum Kom. Accepted M TRO
Polygonum leptobotrys (Meisn.) Kuntze Synonym M TRO
Polygonum leptocarpum B.L. Rob. Synonym M TRO
Polygonum leptocladum Danser Unresolved L WCSP (in review)
Polygonum leptocladum Gand. Unresolved L WCSP (in review)
Polygonum leptophyllum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum leptopodum Diels Unresolved L WCSP (in review)
Polygonum leptopodum var. grossii (H. Lév.) Sam. Synonym L TRO
Polygonum leptostachyum Bruyn Unresolved L WCSP (in review)
Polygonum leuconeuron Peter Unresolved L WCSP (in review)
Polygonum liaotungense Kitag. Unresolved L WCSP (in review)
Polygonum libani Boiss. Unresolved L WCSP (in review)
Polygonum libanoticum Ehrenb. ex Meisn. Unresolved L WCSP (in review)
Polygonum lichiangense W.W. Sm. Accepted M TRO
Polygonum ligerinum Gand. Unresolved L WCSP (in review)
Polygonum lilacinum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum limbatum Meisn. Synonym M WCSP (in review)
Polygonum limicola Sam. Accepted M TRO
Polygonum limosum Kom. Accepted M TRO
Polygonum limprichtii Lingelsh. Synonym L TRO
Polygonum lineare Sam. Synonym M TRO
Polygonum linearifolium Greene Unresolved L WCSP (in review)
Polygonum linicola Sutulov Synonym M WCSP (in review)
Polygonum linifolium B.Heyne Unresolved L WCSP (in review)
Polygonum linifolium Muhl. Unresolved L WCSP (in review)
Polygonum linifolium Perr. ex Meisn. Unresolved L WCSP (in review)
Polygonum litorale (Mert. & W.D.J.Koch) C.Regel Unresolved L WCSP (in review)
Polygonum littorale (Greene) Fedde Accepted L TRO
Polygonum littorale Meisn. Synonym M TRO
Polygonum lonchophyllum (Greene) Fedde Accepted M TRO
Polygonum longiflorum Courchet Unresolved L WCSP (in review)
Polygonum longifolium Gand. Unresolved L WCSP (in review)
Polygonum longiocreatum Bartlett Accepted M WCSP (in review)
Polygonum longipedicellatum Zakirov Synonym M TRO
Polygonum longipes Halácsy & Charrel Accepted M WCSP (in review)
Polygonum longipilum Gand. Unresolved L WCSP (in review)
Polygonum longisetum Bruijn Synonym M TRO
Polygonum longisetum var. longisetum Unresolved L TRO
Polygonum longisetum var. rotundatum A.J. Li Unresolved L TRO
Polygonum longistylum Small Synonym M TRO
Polygonum longistylum var. omissum (Greene) Stanford Unresolved L TRO
Polygonum lorinseri Opiz Unresolved L WCSP (in review)
Polygonum louci Gand. Unresolved L WCSP (in review)
Polygonum loureiroi Poir. Unresolved L WCSP (in review)
Polygonum ludovicianum Meisn. Unresolved L WCSP (in review)
Polygonum lugdunense Gand. Unresolved L WCSP (in review)
Polygonum × luxurians Danser Unresolved L WCSP (in review)
Polygonum luxurians Grig. Synonym M TRO
Polygonum luzuloides Jaub. & Spach Unresolved L WCSP (in review)
Polygonum lyratum Nakai Unresolved L WCSP (in review)
Polygonum maackianum Regel Accepted M TRO
Polygonum macounii Small ex J.M. Macoun Synonym L TRO
Polygonum macranthum Meisn. Synonym M TRO
Polygonum macrochaeton Fresen. Unresolved L WCSP (in review)
Polygonum macrochaetum Miq. Unresolved L WCSP (in review)
Polygonum macrohymenium Boiss. Unresolved L WCSP (in review)
Polygonum macrophyllum D. Don Accepted M TRO
Polygonum macrophyllum var. macrophyllum Synonym L TRO
Polygonum macrophyllum var. stenophyllum (Meisn.) A.J. Li Accepted L TRO
Polygonum macrophyllum f. tomentosum Kitam. Synonym L TRO
Polygonum macropterum Meisn. Unresolved L WCSP (in review)
Polygonum maculatum Raf. Synonym M WCSP (in review)
Polygonum madagascariense (Meisn.) Meisn. Synonym M WCSP (in review)
Polygonum mairei H. Lév. Synonym M TRO
Polygonum majanthemifolium (Petrov) Steward Synonym L TRO
Polygonum majus (Meisn.) Piper Accepted M TRO
Polygonum makinoi Nakai Synonym M TRO
Polygonum malaicum Danser Synonym M TRO
Polygonum mandshuricum Skvortsov Synonym M TRO
Polygonum manoraene Buch.-Ham. ex Endl. Unresolved L WCSP (in review)
Polygonum manshuriense Petrov ex Kom. Accepted M TRO
Polygonum mariae V.N.Vassil. Unresolved L WCSP (in review)
Polygonum marinense T.R. Mert. & P.H. Raven Accepted M TRO
Polygonum marioticum Ehrenb. ex Meisn. Unresolved L WCSP (in review)
Polygonum maritimum L. Accepted M WCSP (in review)
Polygonum maritimum var. chilense (K. Koch) Skottsb. Synonym L TRO
Polygonum marmoramae Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum marretii H. Lév. Synonym L TRO
Polygonum martini H. Lév. & Vaniot Synonym M TRO
Polygonum martinianum Hy Unresolved L WCSP (in review)
Polygonum maximowiczii Regel Unresolved L WCSP (in review)
Polygonum mearnsii Elmer Unresolved L WCSP (in review)
Polygonum meeboldii W.W. Sm. Synonym M TRO
Polygonum meisneri Wall. Unresolved L TRO
Polygonum meisnerianum Cham. & Schltdl. Synonym M TRO
Polygonum meisnerianum var. beyrichianum (Cham. & Schltdl.) Meisn. Synonym L TRO
Polygonum meisnerianum var. setosum Chodat & Hassl. Synonym L TRO
Polygonum melastomaca Delile Unresolved L WCSP (in review)
Polygonum mesembricum Chrtek Synonym M WCSP (in review)
Polygonum mesochorum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum mesomorphum Danser Unresolved L WCSP (in review)
Polygonum metschii Beck Unresolved L WCSP (in review)
Polygonum metzianum Miq. Unresolved L WCSP (in review)
Polygonum metzianum Miq. ex Hook.f. Unresolved L WCSP (in review)
Polygonum mexicanum Small Accepted M TRO
Polygonum meyenii K.Koch Unresolved L WCSP (in review)
Polygonum meyeri Steud. Unresolved L WCSP (in review)
Polygonum mezianum H.Gross Unresolved L WCSP (in review)
Polygonum micranthemum Franch. ex Hook.f. Unresolved L WCSP (in review)
Polygonum micranthum Meisn. Synonym M TRO
Polygonum microcephalum D. Don Accepted M TRO
Polygonum microcephalum var. microcephalum Synonym L TRO
Polygonum microcephalum var. sphaerocephalum (Wall. ex Meisn.) H. Hara Accepted L TRO
Polygonum microphyllum Klotzsch ex Meisn. Unresolved L WCSP (in review)
Polygonum microspermum Jord. ex Boreau Synonym M WCSP (in review)
Polygonum middenorfii Kongar Accepted M TRO
Polygonum mildbraedii Dammer Unresolved L WCSP (in review)
Polygonum millepunctatum Gand. Unresolved L WCSP (in review)
Polygonum milletii (H. Lév.) H. Lév. Accepted L TRO
Polygonum minimum S. Watson Accepted M TRO
Polygonum minus Huds. Synonym M WCSP (in review)
Polygonum minus subsp. micranthum (Meisn.) Danser Synonym L TRO
Polygonum minus subsp. procerum Danser Synonym L TRO
Polygonum minus var. procerum (Danser) Steward Synonym L TRO
Polygonum minus f. trigonocarpum Makino Synonym L TRO
Polygonum minutiflorum Nakai Unresolved L WCSP (in review)
Polygonum minutissimum L.O. Williams Synonym M TRO
Polygonum minutulum Makino Synonym M TRO
Polygonum minutum Hayata Synonym L TRO
Polygonum miquelianum Meisn. Unresolved L WCSP (in review)
Polygonum mirajabii Chaudhri Unresolved L WCSP (in review)
Polygonum miserum Willd. ex Spreng. Unresolved L WCSP (in review)
Polygonum mississippiense Stanford Synonym M TRO
Polygonum mite Schrank Synonym M WCSP (in review)
Polygonum mixtum Goiran & Tonini Unresolved L WCSP (in review)
Polygonum modestum Heimerl Unresolved L WCSP (in review)
Polygonum molle D. Don Accepted M TRO
Polygonum molle var. frondosum (Meisn.) A.J.Li Unresolved L WCSP (in review)
Polygonum molle var. molle Synonym L TRO
Polygonum molle var. rude (Meisn.) A.J.Li Unresolved L WCSP (in review)
Polygonum mollifolium Gand. Unresolved L WCSP (in review)
Polygonum molliiforme Boiss. Accepted M TRO
Polygonum monspeliense Thiéb.-Bern. ex Pers. Synonym M WCSP (in review)
Polygonum montanum (Small) Greene Synonym M TRO
Polygonum montereyense Brenckle Synonym M WCSP (in review)
Polygonum monticolum Steud. Unresolved L WCSP (in review)
Polygonum morrisonense Hayata Synonym M TRO
Polygonum mucronatum Royle ex Bab. Unresolved L WCSP (in review)
Polygonum muhlenbergii (Meisn.) S. Watson Synonym M TRO
Polygonum muhlenbergii var. natans Wiegand Synonym L TRO
Polygonum multangulare Hook. & Arn. Unresolved L WCSP (in review)
Polygonum multiflorum Thunb. Synonym M WCSP (in review)
Polygonum multiflorum var. angulatum S.Y.Liu Synonym L WCSP (in review)
Polygonum multiflorum var. ciliinerve (Nakai) Steward Synonym L WCSP (in review)
Polygonum multiflorum var. hypoleucum (Ohwi) T.S.Liu, S.S.Ying & M.J.Lai Synonym L WCSP (in review)
Polygonum multisetum Delile Unresolved L WCSP (in review)
Polygonum muricatum Meisn. Accepted M TRO
Polygonum muriculatum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum muticum Moench Unresolved L WCSP (in review)
Polygonum myosurus Franch. Synonym M TRO
Polygonum myrianthum Boiss. Unresolved L WCSP (in review)
Polygonum myriocladum Gand. Unresolved L WCSP (in review)
Polygonum myriophyllum H. Gross Synonym M TRO
Polygonum myrtillifolium Kom. Accepted M TRO
Polygonum nakaii (H.Hara) Ohwi Unresolved L WCSP (in review)
Polygonum nanetense Gand. Unresolved L WCSP (in review)
Polygonum nanum Bory Unresolved L WCSP (in review)
Polygonum natans Eaton Synonym M TRO
Polygonum natans var. insigne (Greene) Stanford Unresolved L TRO
Polygonum neglectum Besser Synonym M WCSP (in review)
Polygonum neofiliforme Nakai Synonym L TRO
Polygonum nepalense Meisn. Synonym M WCSP (in review)
Polygonum nepalense var. adenothrix Nakai Synonym L TRO
Polygonum nervosum Wallr. Synonym M TRO
Polygonum nesomii T.M. Schust. & Reveal Unresolved L TRO
Polygonum newberryi Small Synonym L TRO
Polygonum newberryi var. glabrum G.N. Jones Synonym L TRO
Polygonum niloticum Lehm. ex Steud. Unresolved L WCSP (in review)
Polygonum niloticum Meisn. Unresolved L WCSP (in review)
Polygonum nipponense Makino Synonym M TRO
Polygonum nisus Gand. Unresolved L WCSP (in review)
Polygonum nitens (Fisch. & C.A. Mey.) Petrov ex Kom. Synonym M TRO
Polygonum nitidum Ruiz & Pav. Unresolved L WCSP (in review)
Polygonum nodosum Pers. Synonym M WCSP (in review)
Polygonum nodosum var. incanum Ledeb. Synonym L TRO
Polygonum noeanum Boiss. Unresolved L WCSP (in review)
Polygonum norvegicum Lid Accepted M TRO
Polygonum novae-angliae (Greene) Fedde Unresolved L WCSP (in review)
Polygonum novoascanicum Klokov Synonym M WCSP (in review)
Polygonum novoascanicum subsp. cretaceum Tzvelev Synonym L TRO
Polygonum novoascanicum subsp. psammophilum Bordz. ex Tzvelev Unresolved L WCSP (in review)
Polygonum novum Biroli ex Colla Unresolved L WCSP (in review)
Polygonum nudiflorum Raf. Unresolved L WCSP (in review)
Polygonum nudum Dulac Unresolved L WCSP (in review)
Polygonum nummularifolium Meisn. Accepted M TRO
Polygonum nuristanicum Kitam. Unresolved L WCSP (in review)
Polygonum nutans Roxb. Unresolved L WCSP (in review)
Polygonum nuttallii Small Accepted M TRO
Polygonum nyikense Baker Unresolved L WCSP (in review)
Polygonum obliquum Kit. Unresolved L WCSP (in review)
Polygonum obscurum Gand. Unresolved L WCSP (in review)
Polygonum obtusatum Steud. ex Meisn. Unresolved L WCSP (in review)
Polygonum obtusifolium Täckh. & Boulos Synonym M WCSP (in review)
Polygonum occidentale Meisn. Unresolved L WCSP (in review)
Polygonum ochotense Petrov ex Kom. Accepted M TRO
Polygonum ochreatum L. Accepted M TRO
Polygonum ochreatum var. laxmannii Popov Synonym L TRO
Polygonum ochroleucum Gand. Unresolved L WCSP (in review)
Polygonum odontopterum (H. Gross) H.W. Kung Synonym M TRO
Polygonum odoratum Lour. Unresolved L WCSP (in review)
Polygonum oenochroon Gand. Unresolved L WCSP (in review)
Polygonum oenophyton Gand. Unresolved L WCSP (in review)
Polygonum oleraceum Schur Unresolved L WCSP (in review)
Polygonum oliganthum Diels Synonym M TRO
Polygonum oligocladum Danser Unresolved L WCSP (in review)
Polygonum oligophyllum Gand. Unresolved L WCSP (in review)
Polygonum oligophyllum Boiss. Unresolved L WCSP (in review)
Polygonum olivascens Rech. f. & Schiman-Czeika Accepted M TRO
Polygonum olivieri Meisn. Unresolved L WCSP (in review)
Polygonum olivieri Jaub. & Spach Unresolved L WCSP (in review)
Polygonum omerostmmum Ohki Unresolved L WCSP (in review)
Polygonum omerostromum Ohki Synonym M TRO
Polygonum omissum Greene Synonym M TRO
Polygonum ooagariense Masam. Unresolved L WCSP (in review)
Polygonum opacum Sam. Synonym M TRO
Polygonum opelousanum Riddell ex Small Accepted M TRO
Polygonum opelousanum var. adenocalyx Stanford Synonym L TRO
Polygonum opelousanum var. opelousanum Synonym L TRO
Polygonum ophiophilum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum oreganum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum oreophilum (Makino) Ohwi Unresolved L WCSP (in review)
Polygonum orientale L. Synonym M WCSP (in review)
Polygonum orientale var. discolor Benth. Synonym L WCSP (in review)
Polygonum orientale var. pilosum (Roxb. ex Meisn.) Meisn. Synonym L WCSP (in review)
Polygonum orogenes Gand. Unresolved L WCSP (in review)
Polygonum orthocladum Gand. Unresolved L WCSP (in review)
Polygonum oryzetorum Blume Synonym M TRO
Polygonum otophyllum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum ovatolanceolatum Gand. Unresolved L WCSP (in review)
Polygonum ovatum B.Heyne Unresolved L WCSP (in review)
Polygonum ovczinnikovii Czukav. Unresolved L WCSP (in review)
Polygonum owenii Bojer Synonym M WCSP (in review)
Polygonum oxanum Kom. Synonym M TRO
Polygonum oxyphyllum Wall. ex Meisn. Synonym M TRO
Polygonum oxyspermum C.A.Mey. & Bunge Accepted M WCSP (in review)
Polygonum oxyspermum subsp. oxyspermum Synonym L TRO
Polygonum oxyspermum subsp. raii (Bab.) D.A.Webb & Chater Accepted L WCSP (in review)
Polygonum oxyspermum subsp. robertii (Loisel.) Akeroyd & D.A.Webb Accepted L WCSP (in review)
Polygonum pachyrhizum Trautv. Unresolved L WCSP (in review)
Polygonum pachystachyum Raf. Unresolved L WCSP (in review)
Polygonum pacificum Petrov ex Kom. Accepted M TRO
Polygonum palaestinum Zohary Unresolved L TRO
Polygonum paleaceum Wall. Accepted M TRO
Polygonum paleaceum var. paleaceum Synonym L TRO
Polygonum pallens Gand. Unresolved L WCSP (in review)
Polygonum pallens Pers. Unresolved L WCSP (in review)
Polygonum pallidiflorum Gand. Unresolved L WCSP (in review)
Polygonum pallidius Gand. Unresolved L WCSP (in review)
Polygonum pallidum With. Synonym M WCSP (in review)
Polygonum palmatum Dunn Accepted M TRO
Polygonum paludicola Makino Synonym M TRO
Polygonum paludosum (Kom.) Kom. Synonym M TRO
Polygonum palustre D.Parodi Unresolved L WCSP (in review)
Polygonum pamiricum Korsh. Synonym M TRO
Polygonum pamiroalaicum Kom. Synonym M TRO
Polygonum panduriforme H. Lév. & Vaniot Synonym M TRO
Polygonum pangianum (G.D.Pal & Maiti) R.C.Srivast. Unresolved L WCSP (in review)
Polygonum paniculatum Andrz. [Illegitimate] Synonym M WCSP (in review)
Polygonum paniculatum Blume Synonym L TRO
Polygonum paniculatum L. Accepted M TRO
Polygonum paniculatum var. frondosum (Meisn.) Steward Unresolved L WCSP (in review)
Polygonum paniculatum var. rude (Meisn.) Steward Unresolved L WCSP (in review)
Polygonum panjutinii Kharkev. Accepted M TRO
Polygonum pannonicum Simonk. Unresolved L WCSP (in review)
Polygonum pannosum S.S.Sharp ex A.Nelson Unresolved L WCSP (in review)
Polygonum papillosum Hartvig Accepted M WCSP (in review)
Polygonum paradoxum H. Lév. Synonym M TRO
Polygonum paraguayense Wedd. Accepted M TRO
Polygonum paralimicola A.J. Li Accepted M TRO
Polygonum parksii (Cory) T.M. Schust. & Reveal Accepted M TRO
Polygonum paronychia Cham. & Schltdl. Accepted M TRO
Polygonum paronychioides C.A. Mey. Accepted M TRO
Polygonum parryi Greene Accepted M TRO
Polygonum parviflorum Y.L. Chang & S.H. Li Synonym M TRO
Polygonum parvifolium Nutt. Unresolved L WCSP (in review)
Polygonum patens D.Don Unresolved L WCSP (in review)
Polygonum patuliforme Vorosch. Unresolved L TRO
Polygonum patuliforrne Vorosch. Unresolved L WCSP (in review)
Polygonum patulum M.Bieb. Accepted M WCSP (in review)
Polygonum patulum subsp. bordzilowskii Soó Synonym L TRO
Polygonum patulum f. gracilius (Ledeb.) I. Grinţ. Synonym L TRO
Polygonum patulum var. gracilius (Ledeb.) Rouy Synonym L TRO
Polygonum patulum subsp. kitaibelianum Asch. & Graebn. Synonym L TRO
Polygonum patulum subsp. kotovii Soó Synonym L TRO
Polygonum patulum subsp. pulchellum (Loisel.) Leblebici Synonym L WCSP (in review)
Polygonum pauciflorum Maxim. Synonym M TRO
Polygonum paucifoliatum Gand. Unresolved L WCSP (in review)
Polygonum pawlowskianum Glehn Unresolved L WCSP (in review)
Polygonum pedunculare Wall. ex Meisn. Synonym M TRO
Polygonum pensylvanicum L. Synonym M TRO
Polygonum pensylvanicum Bunge Synonym M TRO
Polygonum pensylvanicum var. durum Stanford Synonym L TRO
Polygonum pensylvanicum var. eglandulosum Myers Synonym L TRO
Polygonum pensylvanicum var. laevigatum Fernald Synonym L TRO
Polygonum pensylvanicum var. nesophilum Fernald Synonym L TRO
Polygonum pensylvanicum subsp. oneilii (Brenckle) Hultén Synonym L TRO
Polygonum pensylvanicum var. rosiflorum Norton Synonym L TRO
Polygonum peregrinatoris Paulsen Synonym M TRO
Polygonum perfoliatum L. Accepted M WCSP (in review)
Polygonum perforatum Aitch. Unresolved L WCSP (in review)
Polygonum perforatum Meisn. Unresolved L WCSP (in review)
Polygonum perforatum Wall. Unresolved L WCSP (in review)
Polygonum perforatum var. glaciale Meisn. Synonym L TRO
Polygonum pergracile Hemsl. Synonym M TRO
Polygonum perpusillum Hook. f. Synonym L TRO
Polygonum perrottetii Meisn. Unresolved L WCSP (in review)
Polygonum persicaria L. Synonym M WCSP (in review)
Polygonum persicaria subsp. hirticaulis Danser Synonym L WCSP (in review)
Polygonum persicaria f. humile S.X. Li & Y.L. Chang Synonym L TRO
Polygonum persicaria var. incanum (F.W. Schmidt) Meisn. Synonym L TRO
Polygonum persicaria var. incanum Roth Synonym L TRO
Polygonum persicaria f. latifolium S.X. Li & Y.L. Chang Synonym L TRO
Polygonum persicaria var. opacum (Sam.) A.J. Li Unresolved L TRO
Polygonum persicaria var. persicaria Unresolved L TRO
Polygonum persicaria var. pubescens Makino Synonym L WCSP (in review)
Polygonum persicaria var. ruderale (Salisb.) Meisn. Synonym L TRO
Polygonum persicaria var. vernicosum Cham. & Schltdl. Synonym L TRO
Polygonum persicarioides Kunth Synonym M TRO
Polygonum persoonii Engelm. ex Meisn. Unresolved L WCSP (in review)
Polygonum peruvianum Meisn. Accepted M TRO
Polygonum petecticale Druce Unresolved L WCSP (in review)
Polygonum petiolatum D. Don Synonym M TRO
Polygonum phyllophorum Gand. Unresolved L WCSP (in review)
Polygonum phytolaccifolium Meisn. ex Small Synonym L TRO
Polygonum pictaviense Gand. Unresolved L WCSP (in review)
Polygonum pictum Jacques Unresolved L WCSP (in review)
Polygonum pilatense Gand. Unresolved L WCSP (in review)
Polygonum piliferum Hedw. Synonym M TRO
Polygonum pilosum (Maxim.) Hemsl. [Illegitimate] Unresolved L WCSP (in review)
Polygonum pilosum Roxb. ex Wall. [Illegitimate] Synonym M WCSP (in review)
Polygonum pilosum Roxb. ex Meisn. Synonym M TRO
Polygonum pilushanense Y.C. Liu & C.H. Ou Accepted M TRO
Polygonum pinetorum Hemsl. Accepted M TRO
Polygonum pingwuense F.Z.Li, Y.T.Hou & S.J.Fan Unresolved L WCSP (in review)
Polygonum pinicola T.M. Schust. & Reveal Unresolved L TRO
Polygonum plantagineum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum planum Skvortsov Synonym M TRO
Polygonum plattense (Greene) Fedde Unresolved L WCSP (in review)
Polygonum platycladum F.Muell. Synonym M WCSP (in review)
Polygonum platyphyllum S.X. Li & Y.L. Chang Accepted M TRO
Polygonum plebeium R.Br. Accepted M WCSP (in review)
Polygonum plebeium subsp. changii (Kitag.) Vorosch. Synonym L TRO
Polygonum pleianthum Gand. Unresolved L WCSP (in review)
Polygonum plumosum Small Synonym M TRO
Polygonum pluriflorum K.Koch Unresolved L WCSP (in review)
Polygonum podlechii Rech.f. & Schiman-Czeika Unresolved L WCSP (in review)
Polygonum podocephalum Klotzsch Unresolved L WCSP (in review)
Polygonum podophyllum Gand. Unresolved L WCSP (in review)
Polygonum poiretii Meisn. Synonym M TRO
Polygonum poiretii var. madagascariensis Meisn. Synonym L WCSP (in review)
Polygonum polyanthos Bruyn Unresolved L WCSP (in review)
Polygonum polybotryum F.Muell. Unresolved L WCSP (in review)
Polygonum polycephalum Wall. Unresolved L WCSP (in review)
Polygonum polycnemoides Jaub. & Spach Accepted M TRO
Polygonum polygaloides Meisn. Accepted M TRO
Polygonum polygaloides subsp. confertiflorum (Nutt. ex Piper) J.C.Hickman Accepted L WCSP (in review)
Polygonum polygaloides subsp. esotericum (L.C. Wheeler) J.C. Hickman Accepted L TRO
Polygonum polygaloides subsp. kelloggii (Greene) J.C.Hickman Accepted L WCSP (in review)
Polygonum polygaloides var. montanum Brenckle Synonym L TRO
Polygonum polygaloides subsp. polygaloides Synonym L TRO
Polygonum polygamum Vent. Synonym M TRO
Polygonum polymorphum Ledeb. Unresolved L WCSP (in review)
Polygonum polymorphum var. ajanense Regel & Tiling Synonym L TRO
Polygonum polymorphum var. angustissimum Korsh. Synonym L TRO
Polygonum polymorphum var. foliosum R. Keller Synonym L TRO
Polygonum polymorphum var. lapathifolium (Cham. & Schltdl.) Ledeb. Synonym L TRO
Polygonum polyneuron Franch. & Sav. Synonym M TRO
Polygonum polystachyum Wall. ex Meisn. Synonym M WCSP (in review)
Polygonum polystachyum var. polystachyum Unresolved L TRO
Polygonum popovii Borodina Accepted M TRO
Polygonum porteri (Greene) Fedde Unresolved L WCSP (in review)
Polygonum portoricense Bertero ex Endl. Synonym M WCSP (in review)
Polygonum posumbu Buch.-Ham. ex D. Don Accepted M TRO
Polygonum posumbu var. blumei (Meisn. ex Miq.) Herder Synonym L TRO
Polygonum praelongum Coode & Cullen Unresolved L WCSP (in review)
Polygonum praelongum Gand. Unresolved L WCSP (in review)
Polygonum praetermissum Hook. f. Accepted M TRO
Polygonum pratincolum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum pringlei Small Accepted M TRO
Polygonum procumbens Gilib. [Invalid] Synonym M WCSP (in review)
Polygonum procumbens Y.L. Chang & S.X. Li Synonym M TRO
Polygonum proliferum Houtt. Unresolved L WCSP (in review)
Polygonum prolificum (Small) B.L. Rob. Synonym M TRO
Polygonum prolificum var. autumnale (Brenckle) Brenckle Synonym L TRO
Polygonum prolificum var. profusum Brenckle Synonym L TRO
Polygonum pronum C.F. Fang Synonym M TRO
Polygonum propinquum Ledeb. Synonym M WCSP (in review)
Polygonum prostratum Skvortsov Synonym M TRO
Polygonum provinciale K.Koch Unresolved L WCSP (in review)
Polygonum przewalskii A.K. Skvortsov & Borodina Synonym M TRO
Polygonum psammophilum (Bordz. ex Tzvelev) Tzvelev Unresolved L WCSP (in review)
Polygonum pseudoarenarium Klokov Synonym M WCSP (in review)
Polygonum pseudoarenarium subsp. janatae E. Wulff Synonym L TRO
Polygonum × pseudobellardii Hausskn. Unresolved L WCSP (in review)
Polygonum pseudohydropiper Salzm. ex Ball Unresolved L WCSP (in review)
Polygonum × pseudoincanum Klokov Unresolved L WCSP (in review)
Polygonum pseudoincanum Klokov Unresolved L TRO
Polygonum pseudojaponicum Ohki Unresolved L WCSP (in review)
Polygonum pseudolapathum Schur Unresolved L WCSP (in review)
Polygonum pseudonodosum Ohki Unresolved L WCSP (in review)
Polygonum pseudopalmatum C. Ho Synonym M TRO
Polygonum × pseudopulchellum Hausskn. Unresolved L WCSP (in review)
Polygonum psychrophilum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum pteranthum Kitag. Unresolved L WCSP (in review)
Polygonum pterocarpum Wall. Unresolved L WCSP (in review)
Polygonum pteropus Hance Synonym M TRO
Polygonum pubescens Blume Accepted M TRO
Polygonum pulchellum Loisel. Synonym M WCSP (in review)
Polygonum pulchrum Blume Synonym M WCSP (in review)
Polygonum pulvinatum Kom. Unresolved L WCSP (in review)
Polygonum punctatum Elliott Synonym M WCSP (in review)
Polygonum punctatum var. alatum Buch.-Ham. ex D. Don Synonym L TRO
Polygonum punctatum var. aquatile (Mart.) Fassett Synonym L TRO
Polygonum punctatum var. confertiflorum (Meisn.) Fassett Synonym L TRO
Polygonum punctatum var. ellipticum Fassett Synonym L TRO
Polygonum punctatum var. leptostachyum (Meisn.) Small Synonym L TRO
Polygonum punctatum var. littorale Fassett Synonym L TRO
Polygonum punctatum f. longicollum Fassett Synonym L TRO
Polygonum punctatum var. majus (Meisn.) Fassett Synonym L TRO
Polygonum punctatum var. mexicanum Fassett Synonym L TRO
Polygonum punctatum var. parviflorum Fassett Synonym L TRO
Polygonum punctatum var. parvum Vict. & J. Rousseau Synonym L TRO
Polygonum punctatum var. riparium (Meisn.) Fassett Synonym L TRO
Polygonum punctatum var. robustius Small Synonym L TRO
Polygonum punctatum f. stipitatum Fassett Synonym L TRO
Polygonum punctatum var. tacubayanum (Nieuwl.) Fassett Synonym L TRO
Polygonum puritanorum Fernald Synonym M TRO
Polygonum purpuratum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum purpuratum Gand. Unresolved L WCSP (in review)
Polygonum purpureonervosum A.J. Li Accepted M TRO
Polygonum purpureum Gilib. Unresolved L WCSP (in review)
Polygonum pusillum Guss. Ex Nyman Unresolved L WCSP (in review)
Polygonum pusillum Krock. Unresolved L WCSP (in review)
Polygonum pusillum Lam. Unresolved L WCSP (in review)
Polygonum pusillum Kitt. Unresolved L WCSP (in review)
Polygonum pusporium Gilib. Unresolved L TRO
Polygonum pycnophyllum Gand. Unresolved L WCSP (in review)
Polygonum pyramidale H. Lév. Synonym M TRO
Polygonum pyramidatum Loisel. Unresolved L WCSP (in review)
Polygonum quadrangulatum M. Martens & Galeotti Synonym M TRO
Polygonum quadrifidum Hayata Synonym M TRO
Polygonum quarrei De Wild. Unresolved L WCSP (in review)
Polygonum radicans Hemsl. Synonym L TRO
Polygonum radicosum Boiss. Unresolved L WCSP (in review)
Polygonum raii Bab. Synonym M WCSP (in review)
Polygonum raii subsp. norvegicum Sam. Synonym L TRO
Polygonum ramiflorum Janka Unresolved L WCSP (in review)
Polygonum ramosissimum Michx. Accepted M WCSP (in review)
Polygonum ramosissimum var. prolificum Small Synonym L TRO
Polygonum ramosissimum subsp. prolificum (Small) Costea & Tardif Accepted L TRO
Polygonum ramosissimum f. ramosissimum Synonym L TRO
Polygonum ramosissimum subsp. ramosissimum Synonym L TRO
Polygonum ramosospicatum Klotzsch Unresolved L WCSP (in review)
Polygonum ramosum Fisch. ex Hornem. Unresolved L WCSP (in review)
Polygonum ramuliflorum Kitag. Unresolved L WCSP (in review)
Polygonum raptae Buch.-Ham. ex Endl. Unresolved L WCSP (in review)
Polygonum rapte Ham. ex Hook.f. Unresolved L WCSP (in review)
Polygonum rayi Bab. Unresolved L WCSP (in review)
Polygonum rectum H. Scholz Synonym M TRO
Polygonum rectum subsp. virgatum H. Scholz Synonym L TRO
Polygonum recumbens Royle ex Bab. Accepted M TRO
Polygonum refractum Mart. ex Meisn. Unresolved L WCSP (in review)
Polygonum regelianum Kom. Synonym M TRO
Polygonum reichenbachii Gand. Unresolved L WCSP (in review)
Polygonum relictum Kom. Accepted M TRO
Polygonum remotum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum renii L.C. Wang Synonym M TRO
Polygonum repens Meisn. Unresolved L WCSP (in review)
Polygonum restionoides Boiss. & Hausskn. Unresolved L WCSP (in review)
Polygonum reticulatum Bruyn Unresolved L WCSP (in review)
Polygonum reticulatum K.Koch Unresolved L WCSP (in review)
Polygonum retinerve Vorosch. Synonym M TRO
Polygonum reynoutria Makino Synonym M WCSP (in review)
Polygonum reynoutria f. colorans Makino Synonym L WCSP (in review)
Polygonum reynoutria var. elliptica Koidz. Synonym L WCSP (in review)
Polygonum reynoutria var. ellipticum Koidz. Synonym L TRO
Polygonum × rhaeticum Brügger Unresolved L WCSP (in review)
Polygonum rheiflorum Griff. Unresolved L WCSP (in review)
Polygonum rhizocaulon Bruyn Unresolved L WCSP (in review)
Polygonum rhizoxylon Pau & Font Quer Synonym M WCSP (in review)
Polygonum rhodanense Gand. Unresolved L WCSP (in review)
Polygonum rhombaeum Gand. Unresolved L WCSP (in review)
Polygonum rhyticarium Kuntze Unresolved L WCSP (in review)
Polygonum ribesioides Huber Unresolved L WCSP (in review)
Polygonum richteri Gand. Unresolved L WCSP (in review)
Polygonum rigidulum E. Sheld. Synonym M TRO
Polygonum rigidum Skvortsov Accepted M TRO
Polygonum riparium Georgi Accepted M TRO
Polygonum rivulare Roxb. Synonym M TRO
Polygonum robertii Loisel. Synonym M WCSP (in review)
Polygonum robustius (Small) Fernald Synonym M TRO
Polygonum robustum Meisn. Unresolved L WCSP (in review)
Polygonum robynsii De Wild. Unresolved L WCSP (in review)
Polygonum roettleri Roth Unresolved L WCSP (in review)
Polygonum romanum Jacq. Accepted M WCSP (in review)
Polygonum romanum subsp. gallicum (Raffaelli) Raffaelli & L.Villar Accepted L WCSP (in review)
Polygonum rosellum Gand. Unresolved L WCSP (in review)
Polygonum roseoviride (Kitag.) S.X. Li & Y.L. Chang Synonym M TRO
Polygonum roseoviride var. manshuricola (Kitag.) C.F. Fang Synonym L TRO
Polygonum rothrockii (Greene) Fedde Unresolved L WCSP (in review)
Polygonum rottboellioides Jaub. & Spach Accepted M TRO
Polygonum rottboellioides var. rottboellioides Synonym L TRO
Polygonum rottboellioides var. tibetica (Hook. f.) R.R. Stewart Accepted L TRO
Polygonum rotundatum (A.J.Li) F.Z.Li & C.Y.Qu Unresolved L WCSP (in review)
Polygonum rotundifolium auct. Unresolved L WCSP (in review)
Polygonum roxburghii Meisn. Synonym M TRO
Polygonum royi Gand. Unresolved L WCSP (in review)
Polygonum roylei Bab. Accepted M TRO
Polygonum rubelliflorum Gand. Unresolved L WCSP (in review)
Polygonum rubescens Small Synonym M WCSP (in review)
Polygonum rubicundum Sol. ex Meisn. Unresolved L WCSP (in review)
Polygonum rubricaule Cham. Accepted M TRO
Polygonum rubriflorum Friv. ex Meisn. Unresolved L WCSP (in review)
Polygonum rude Meisn. Unresolved L WCSP (in review)
Polygonum ruderale Salisb. Synonym M TRO
Polygonum rufescens Gand. Unresolved L WCSP (in review)
Polygonum rugosum Buch.-Ham. ex Endl. Unresolved L WCSP (in review)
Polygonum ruizianum K.Koch Unresolved L WCSP (in review)
Polygonum rumicifolium Royle ex Bab. Synonym M TRO
Polygonum rumicifolium var. oblongum Meisn. Synonym L TRO
Polygonum runcinatum Buch.-Ham. ex D. Don Accepted M TRO
Polygonum runcinatum var. exauriculatum Lingelsh. Synonym L TRO
Polygonum runcinatum var. runcinatum Synonym L TRO
Polygonum runcinatum var. sinense Hemsl. Accepted L TRO
Polygonum rupestre Kar. & Kir. Synonym M TRO
Polygonum rupestre (Wedd.) Kuntze Synonym M TRO
Polygonum rurivagum Jord. ex Boreau Accepted M WCSP (in review)
Polygonum ruscinonense Gand. Unresolved L WCSP (in review)
Polygonum ryukyuense Kitag. Unresolved L WCSP (in review)
Polygonum sabulosum Vorosch. Unresolved L WCSP (in review)
Polygonum sachalinense F.Schmidt Synonym M WCSP (in review)
Polygonum sachalinense var. intermedium Tatew. Synonym L WCSP (in review)
Polygonum sagittatum L. Synonym M WCSP (in review)
Polygonum sagittatum var. boreale Meisn. Synonym L TRO
Polygonum sagittatum var. gracilentum Fernald Synonym L TRO
Polygonum sagittatum var. paludosum Kom. Synonym L TRO
Polygonum sagittatum var. pubescens R.Keller Synonym L WCSP (in review)
Polygonum sagittatum var. sibiricum Meisn. Synonym L TRO
Polygonum sagittatum var. sieboldii (Meisn.) Maxim. ex Kom. Synonym L TRO
Polygonum sagittatum subsp. sieboldii (Meisn.) Vorosch. Synonym L TRO
Polygonum sagittatum var. ussuriense Regel Synonym L TRO
Polygonum sagittifolia (Ortega) Kuntze Synonym M WCSP (in review)
Polygonum sagittifolium H. Lév. & Vaniot Synonym M TRO
Polygonum salebrosum Coode & Cullen Unresolved L WCSP (in review)
Polygonum salicifolium Brouss. ex Willd. Synonym M WCSP (in review)
Polygonum salicifolium Schur [Illegitimate] Synonym M WCSP (in review)
Polygonum salicinum Greene Unresolved L TRO
Polygonum salicornioides Jaub. & Spach ex Boiss. Accepted M TRO
Polygonum salignum Willd. Unresolved L WCSP (in review)
Polygonum salinum Baranov & Skvortsov Synonym M TRO
Polygonum salsugineum M.Bieb. Accepted M WCSP (in review)
Polygonum salsuginosum Wallr. Unresolved L WCSP (in review)
Polygonum samarense H.Gross Synonym M WCSP (in review)
Polygonum sambesiacum Hedw. Synonym M TRO
Polygonum sambesicum Schust. Synonym M TRO
Polygonum samsunicum Yıld. & Leblebici Unresolved L WCSP (in review)
Polygonum sanguinaria Remy Accepted M TRO
Polygonum sanguineum Larrañaga Unresolved L WCSP (in review)
Polygonum saporoviense Klokov Synonym M WCSP (in review)
Polygonum sarbhanganicum Subba Rao Unresolved L WCSP (in review)
Polygonum sarobiense Rech. f. Accepted M TRO
Polygonum savatieri Nakai Synonym M TRO
Polygonum sawatchense Small Synonym M WCSP (in review)
Polygonum sawatchense subsp. sawatchense Unresolved L TRO
Polygonum scaberulum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum scabridum Willd. ex Meisn. Unresolved L WCSP (in review)
Polygonum scabrinervium Royle ex Bab. Unresolved L WCSP (in review)
Polygonum scabrum Moench Synonym M WCSP (in review)
Polygonum scabrum var. glabrescens Feinbrun Synonym L TRO
Polygonum scandens L. Synonym M WCSP (in review)
Polygonum scandens var. cristatum (Engelm. & A. Gray) Gleason Synonym L TRO
Polygonum scandens var. dentatoalatum (F.Schmidt) Maxim. ex Franch. & Sav. Synonym L WCSP (in review)
Polygonum scandens var. dumetorum (L.) Gleason Synonym L TRO
Polygonum schimperi Vatke ex Engl. Unresolved L WCSP (in review)
Polygonum schindleri Danser Unresolved L WCSP (in review)
Polygonum schinzii Hedw. Synonym M TRO
Polygonum schinzii J. Schust. Synonym M TRO
Polygonum schischkinii Ivanova, Elena Ilyinichna ex Borodina Accepted M TRO
Polygonum schistosum Czukav. Unresolved L WCSP (in review)
Polygonum × schroeterianum Danser Unresolved L WCSP (in review)
Polygonum schugnanicum Kom. Synonym M TRO
Polygonum schurii Fuss Unresolved L WCSP (in review)
Polygonum schychowscii Andrz. Unresolved L WCSP (in review)
Polygonum schychowscii Andrz. ex Trautv. Unresolved L WCSP (in review)
Polygonum sclerophloeum Gand. Unresolved L WCSP (in review)
Polygonum scoparium Req. ex Loisel. Accepted M WCSP (in review)
Polygonum scopulinum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum scythicum Klokov Synonym M WCSP (in review)
Polygonum segetale Lindm. Unresolved L WCSP (in review)
Polygonum segetum Kunth Synonym M WCSP (in review)
Polygonum semidanubiale Danser Unresolved L WCSP (in review)
Polygonum semilanceifolium Danser Unresolved L WCSP (in review)
Polygonum semilatum Danser Unresolved L WCSP (in review)
Polygonum semisyringifolium Danser Unresolved L WCSP (in review)
Polygonum senegalense Meisn. Synonym M WCSP (in review)
Polygonum senegalense subsp. albotomentosum (R.A.Graham) Germish. Synonym L WCSP (in review)
Polygonum senegalense f. albotomentosum R.A.Graham Synonym L WCSP (in review)
Polygonum senegalense var. robustum Cavaco Synonym L TRO
Polygonum senegalense f. senegalense Unresolved L TRO
Polygonum senticosum (Meisn.) Franch. & Sav. Accepted L TRO
Polygonum senticosum var. formosanum Ohwi Synonym L TRO
Polygonum senticosum var. sagittifolium (H. Lév. & Vaniot) C.W. Park Synonym L TRO
Polygonum sericeum Pall. ex Georgi Accepted M TRO
Polygonum serotinum Ten. Unresolved L WCSP (in review)
Polygonum serotinum Raf. Unresolved L WCSP (in review)
Polygonum serpyllaceum Jaub. & Spach Accepted M TRO
Polygonum serratum Poir. Unresolved L WCSP (in review)
Polygonum serratum L. Unresolved L WCSP (in review)
Polygonum serrulatoides H.Lindb. Synonym M WCSP (in review)
Polygonum serrulatum Lag. Synonym M WCSP (in review)
Polygonum setaceum Baldwin Synonym M TRO
Polygonum setaceum var. interjectum Fernald Synonym L TRO
Polygonum setaceum var. tonsum Fernald Synonym L TRO
Polygonum setiferum Gand. Unresolved L WCSP (in review)
Polygonum setigerum Wedd. Synonym M TRO
Polygonum setosulum A.Rich. Synonym M WCSP (in review)
Polygonum setosum Raf. Unresolved L WCSP (in review)
Polygonum setosum Jacq. Unresolved L WCSP (in review)
Polygonum setosum Ruiz & Pav. Unresolved L WCSP (in review)
Polygonum shastense W.H. Brewer Accepted M TRO
Polygonum shiheziense F.Z. Li, Y.T. Hou & F.J. Lu Accepted M TRO
Polygonum shuchengense Z.Z. Zhou Synonym M TRO
Polygonum sibiricum Laxm. Accepted M TRO
Polygonum sibiricum var. nanum Meisn. Synonym L TRO
Polygonum sibiricum var. sibiricum Synonym L TRO
Polygonum sibiricum subsp. thomsonii Rech. f. & Schiman-Czieka Synonym L TRO
Polygonum sibiricum var. thomsonii Meisn. Accepted L TRO
Polygonum siculum Tod. ex Lojac. Unresolved L WCSP (in review)
Polygonum sieboldii de Vriese ex L.H.Bailey [Illegitimate] Synonym M WCSP (in review)
Polygonum sieboldii Meisn. Synonym M TRO
Polygonum sieboldii var. pratense Y.L. Chang & S.X. Li Synonym L TRO
Polygonum simlense Royle ex Bab. Unresolved L WCSP (in review)
Polygonum sinarum Desv. ex Meisn. Unresolved L WCSP (in review)
Polygonum sinense J.F. Gmel. Synonym M TRO
Polygonum sinicum (Migo) Fang & Zheng Synonym M TRO
Polygonum sinomontanum Sam. Accepted M TRO
Polygonum sinuatum Royle ex Bab. Synonym M TRO
Polygonum sivasicum Kit Tan & Yıldız Unresolved L WCSP (in review)
Polygonum smallianum T.M. Schust. & Reveal Unresolved L TRO
Polygonum smallii Kongar Synonym M TRO
Polygonum snijmaniae S.Ortiz Unresolved L WCSP (in review)
Polygonum snobarii (Munshi & Javeid) R.C.Srivast. Unresolved L WCSP (in review)
Polygonum sodo-folium Larrañaga Unresolved L WCSP (in review)
Polygonum somdevae Aswal & Mehrotra Unresolved L WCSP (in review)
Polygonum somphocarpum Bruyn Unresolved L WCSP (in review)
Polygonum songaricum Schrenk ex Fisch. & C.A. Mey. Accepted M TRO
Polygonum spaethii Damm. Synonym M TRO
Polygonum sparsiflorum Vorosch. Unresolved L WCSP (in review)
Polygonum sparsipilosum A.J. Li Accepted M TRO
Polygonum sparsipilosum var. hubertii (Lingelsh.) A.J. Li Accepted L TRO
Polygonum sparsipilosum var. sparsipilosum Synonym L TRO
Polygonum speciosum Meisn. Synonym M TRO
Polygonum spectabile Lehm. Synonym M WCSP (in review)
Polygonum spectabile Mart. ex Meisn. Synonym M TRO
Polygonum spectabile var. incanum Meisn. Synonym L TRO
Polygonum spectabile var. minor Chodat Synonym L TRO
Polygonum spectabile var. patagonica Speg. Synonym L TRO
Polygonum spergulariiforme Meisn. ex Small Accepted M TRO
Polygonum sphaerocephalum Wall. ex Meisn. Synonym M TRO
Polygonum sphaerostachyum Meisn. Synonym M TRO
Polygonum spinosum H.Gross Unresolved L WCSP (in review)
Polygonum spinulosum Bojer ex Meisn. Unresolved L WCSP (in review)
Polygonum spirale Noronha Unresolved L WCSP (in review)
Polygonum splendens Klotzsch Unresolved L WCSP (in review)
Polygonum squamosum Raf. Unresolved L WCSP (in review)
Polygonum stagninum Buch.-Ham. ex Meisn. Synonym M TRO
Polygonum stans Kitag. Synonym M WCSP (in review)
Polygonum statice H. Lév. Synonym M TRO
Polygonum staticiflorum Wall. Unresolved L WCSP (in review)
Polygonum stellatotomentosum W.W. Sm. & Ramasw. Synonym M TRO
Polygonum stelligerum Cham. Accepted M TRO
Polygonum stenobelonum Danser Unresolved L WCSP (in review)
Polygonum stenophyllum Meisn. Synonym M TRO
Polygonum sterile Nakai Synonym M TRO
Polygonum sterile var. brevistylum (Nakai) Nakai Synonym L TRO
Polygonum stevensii Brenckle Synonym M TRO
Polygonum stoloniferum F. Schmidt Synonym M TRO
Polygonum striatulum B.L. Rob. Accepted M TRO
Polygonum striatulum var. texense (M.C. Johnst.) Costea & Tardif Synonym L TRO
Polygonum striatum K. Koch Synonym M TRO
Polygonum stricticaule Gand. Unresolved L WCSP (in review)
Polygonum strictum Meisn. Unresolved L WCSP (in review)
Polygonum strictum Ledeb. Unresolved L WCSP (in review)
Polygonum strictum All. Unresolved L WCSP (in review)
Polygonum strigillosum Zipp. ex Miq. Unresolved L WCSP (in review)
Polygonum strigosum R.Br. Synonym M WCSP (in review)
Polygonum strigosum var. hastatosagittatum (Makino) Steward Synonym L TRO
Polygonum strigosum var. muricatum (Meisn.) Stew. Synonym L TRO
Polygonum strigosum var. pedunculare (Wall. ex Meisn.) Steward Synonym L TRO
Polygonum strindbergii J. Schust. Accepted M TRO
Polygonum stuckertii Gand. Unresolved L WCSP (in review)
Polygonum styligerum Bruyn Unresolved L WCSP (in review)
Polygonum stypticum Cham. & Schltdl. Accepted M TRO
Polygonum subalatum Samp. Unresolved L WCSP (in review)
Polygonum subaphyllum Sumnev. Unresolved L WCSP (in review)
Polygonum subauriculatum Petrov ex Kom. Accepted M TRO
Polygonum subcanum Gand. Unresolved L WCSP (in review)
Polygonum subcordatum Miq. Unresolved L WCSP (in review)
Polygonum subcoriaceum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum subincanum Mart. Unresolved L WCSP (in review)
Polygonum subsagittatum Park,D. Accepted M TRO
Polygonum subscaposum Diels Accepted M TRO
Polygonum × subsericeum Popov Accepted M TRO
Polygonum subsericeum Popov Synonym M TRO
Polygonum subsessile R.Br. Unresolved L WCSP (in review)
Polygonum subsimplex Gand. Unresolved L WCSP (in review)
Polygonum suffruticosum Salzm. ex Ball Unresolved L WCSP (in review)
Polygonum suffruticulosum Gand. Unresolved L WCSP (in review)
Polygonum suffultoides A.J. Li Accepted M TRO
Polygonum suffultum Maxim. Accepted L TRO
Polygonum suffultum var. pergracile (Hemsl.) Sam. Accepted L TRO
Polygonum suffultum var. suffultum Synonym L TRO
Polygonum suifunense Vorosch. & N.S.Pavlova Unresolved L WCSP (in review)
Polygonum sumatranum Gand. Unresolved L WCSP (in review)
Polygonum sumatranum Bruyn Unresolved L WCSP (in review)
Polygonum sungareense (Kitag.) Kitag. Synonym M TRO
Polygonum sungareense f. rubiflorum S.X. Li & Y.L. Chang Synonym L TRO
Polygonum sylvaticum Skvortsov Unresolved L WCSP (in review)
Polygonum syringifolium Danser Unresolved L WCSP (in review)
Polygonum tachengense F.Z.Li, Y.T.Hou & F.J.Lu Unresolved L WCSP (in review)
Polygonum taipaishanense H.W. Kung Synonym L TRO
Polygonum tairae Ohwi Unresolved L WCSP (in review)
Polygonum taliense Lingelsh. Synonym M TRO
Polygonum tamnifolium Kunth Synonym M WCSP (in review)
Polygonum tamnifolium var. xerocarpum Kuntze Synonym L TRO
Polygonum tanganikae J.Schust. Unresolved L WCSP (in review)
Polygonum taquetii H. Lév. Accepted M TRO
Polygonum tarmense Ruiz ex Meisn. Unresolved L WCSP (in review)
Polygonum tataricum L. Synonym M WCSP (in review)
Polygonum tatewakianum Koji Ito Unresolved L WCSP (in review)
Polygonum telonense Gand. Unresolved L WCSP (in review)
Polygonum tenellum Blume Synonym M TRO
Polygonum tenellum var. micranthum (Meisn.) C.Y. Wu Synonym L TRO
Polygonum tenerum Spreng. Unresolved L WCSP (in review)
Polygonum tenoreanum E.Nardi & Raffaelli Accepted L WCSP (in review)
Polygonum tenue Michx. Accepted M TRO
Polygonum tenue var. commune Engelm. Synonym L TRO
Polygonum tenue var. latifolium Engelm. Synonym L TRO
Polygonum tenue var. microspermum Engelm. Synonym L TRO
Polygonum tenue var. protrusum Fernald Synonym L TRO
Polygonum tenue var. tenue Synonym L TRO
Polygonum tenuicaule Bisset & S.Moore Unresolved L WCSP (in review)
Polygonum tenuiflorum C.Presl Unresolved L WCSP (in review)
Polygonum tenuifolium H.W. Kung Synonym M TRO
Polygonum tenuinaevum Gand. Unresolved L WCSP (in review)
Polygonum tenuissimum A.I.Baranov & Skvortsov ex Vorosch. Unresolved L WCSP (in review)
Polygonum tephioides D.Parodi Unresolved L WCSP (in review)
Polygonum terrestre Hegetschw. Unresolved L WCSP (in review)
Polygonum tetragonum Blume Synonym M TRO
Polygonum texense M.C. Johnst. Synonym M TRO
Polygonum thevenaei Lesp. Unresolved L WCSP (in review)
Polygonum thunbergii Siebold & Zucc. Accepted M TRO
Polygonum thunbergii f. bicovexum (Hayata) Liu et al. Synonym L TRO
Polygonum thunbergii var. maackianum Maxim. ex Franch. & Sav. Synonym L TRO
Polygonum thunbergii var. spicatum H. Lév. Synonym L TRO
Polygonum thunbergii var. stoloniferum (F. Schmidt) Makino Synonym L TRO
Polygonum thymifolium Jaub. & Spach Accepted M TRO
Polygonum tibeticum Hemsl. Accepted M TRO
Polygonum tiflisiense Kom. Unresolved L WCSP (in review)
Polygonum tiliifolium (Wedd.) Kuntze Synonym M TRO
Polygonum tinctorium Aiton Synonym M WCSP (in review)
Polygonum todaroi Lojac. Unresolved L WCSP (in review)
Polygonum toktogulicum Lazkov Synonym M TRO
Polygonum tomentosum Schrank Synonym M WCSP (in review)
Polygonum tomentosum Willd. [Illegitimate] Synonym M WCSP (in review)
Polygonum torquatum Bruyn Synonym M WCSP (in review)
Polygonum torquatum Bruijn Synonym M TRO
Polygonum torreyi S. Watson Synonym M TRO
Polygonum tortuosum D. Don Accepted M TRO
Polygonum tortuosum (Losinsk.) Lovelius Unresolved L TRO
Polygonum tortuosum var. tibetanum Meisn. Synonym L TRO
Polygonum triandrous Coolidge Unresolved L WCSP (in review)
Polygonum triandrum Coolidge Synonym M TRO
Polygonum triangulare Wall. Unresolved L WCSP (in review)
Polygonum triangulum E.P. Bicknell ex Small Synonym M TRO
Polygonum trigonocarpum (Makino) Kudô & Masam. Accepted M TRO
Polygonum tripterocarpum A. Gray ex Rothr. Accepted M TRO
Polygonum tristachyum Baker Synonym M WCSP (in review)
Polygonum tristachyum H. Lév. Synonym M TRO
Polygonum tropicum K.Koch Unresolved L WCSP (in review)
Polygonum truellum Koidz. Unresolved L WCSP (in review)
Polygonum truncatum A.Rich. Unresolved L WCSP (in review)
Polygonum truncatum Zoll. & Moritzi Unresolved L WCSP (in review)
Polygonum tsangschanicum Lingelsh. & Borza Synonym L TRO
Polygonum tubulosum Boiss. Synonym M TRO
Polygonum tubulosum var. tibetica Hook. f. Synonym L TRO
Polygonum tumidum Delile Accepted M TRO
Polygonum turgidum Thuill. Accepted M TRO
Polygonum turkestanicum Sumnev. Unresolved L WCSP (in review)
Polygonum typhoniifolium Hance Synonym L TRO
Polygonum umbellatum (Houtt.) Koidz. Unresolved L WCSP (in review)
Polygonum umbrosum Sam. Accepted M TRO
Polygonum undulatum Murray [Illegitimate] Synonym M WCSP (in review)
Polygonum undulatum P.J. Bergius Accepted M TRO
Polygonum uniflorum Y.X. Ma & Y.T. Zhao Synonym M TRO
Polygonum unifolium Small ex Rydb. Synonym M TRO
Polygonum urgellense Sennen Unresolved L WCSP (in review)
Polygonum urophyllum Bureau & Franch. Synonym M TRO
Polygonum uruguense H. Gross Synonym M TRO
Polygonum urumqiense F.Z. Li, Y.T. Hou & F.J. Lu Accepted M TRO
Polygonum ussuriense (Regel) Nakai Synonym M TRO
Polygonum utahense Brenckle & Cottam Unresolved L WCSP (in review)
Polygonum utahensis Brenckle & Cottam Accepted M TRO
Polygonum utriculatum Remy Synonym M TRO
Polygonum utriculosum Tikovsky Synonym M TRO
Polygonum uviferum L. Synonym M WCSP (in review)
Polygonum vaccinifolium Wall. Unresolved L WCSP (in review)
Polygonum vacciniifolium Wall. ex Meisn. Accepted M TRO
Polygonum vagans Greene Unresolved L WCSP (in review)
Polygonum valdivianum Phil. Unresolved L WCSP (in review)
Polygonum valerii A.K.Skvortsov Unresolved L WCSP (in review)
Polygonum vaniotianum (H. Lév.) H. Lév. Synonym M TRO
Polygonum varians Kuntze Unresolved L WCSP (in review)
Polygonum vellosoi Toledo Unresolved L WCSP (in review)
Polygonum venantianum Clementi Synonym M WCSP (in review)
Polygonum venosum Steward Unresolved L WCSP (in review)
Polygonum vernale (Nakai) Makino & Nemoto Unresolved L WCSP (in review)
Polygonum vernum Raf. Unresolved L WCSP (in review)
Polygonum verticillatum Biroli ex Colla Unresolved L WCSP (in review)
Polygonum vestitum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum vesulum Gand. Unresolved L WCSP (in review)
Polygonum villosulum (Greene) Fedde Unresolved L WCSP (in review)
Polygonum virescens Gand. Unresolved L WCSP (in review)
Polygonum virgatum Cham. & Schltdl. Synonym M TRO
Polygonum virginianum L. Accepted M TRO
Polygonum virginianum var. filiforme (Thunb.) Nakai Synonym L TRO
Polygonum virginianum var. filiforme (Thunb.) Merr. Synonym L TRO
Polygonum virginianum f. glabratum Matsuda Synonym L TRO
Polygonum viridiflorum Poir. Synonym M TRO
Polygonum viscoferum Makino Accepted M TRO
Polygonum viscoferum var. robustum Makino Synonym L TRO
Polygonum viscosum Buch.-Ham. ex D. Don Accepted M TRO
Polygonum viscosum var. minus Hook. f. Synonym L TRO
Polygonum viviparum L. Synonym L WCSP (in review)
Polygonum viviparum var. macounii (Small ex J.M. Macoun) Hultén Synonym L TRO
Polygonum viviparum var. tenuifolium (H.W. Kung) Y.L. Liu Unresolved L TRO
Polygonum viviparum var. viviparum Unresolved L TRO
Polygonum vladimiri Czerep. Accepted M TRO
Polygonum volcanicum Benth. Synonym M WCSP (in review)
Polygonum volchovense Tzvelev Unresolved L WCSP (in review)
Polygonum volubile Gilib. Synonym M WCSP (in review)
Polygonum volubile Turcz. Synonym M TRO
Polygonum vulcanicum Greene Unresolved L WCSP (in review)
Polygonum vulgare Gueldenst. Unresolved L WCSP (in review)
Polygonum vvedenskyi Sumner Accepted M TRO
Polygonum wallichii Meisn. Accepted M TRO
Polygonum wardii (Greene) Fedde Unresolved L WCSP (in review)
Polygonum watsonii Small Synonym M WCSP (in review)
Polygonum wellensii De Wild. Unresolved L WCSP (in review)
Polygonum weyrichii F. Schmidt Accepted M TRO
Polygonum yamatutae Kitag. Synonym M TRO
Polygonum yatagaianum T.Mori Unresolved L WCSP (in review)
Polygonum yokusaianum Makino Synonym M TRO
Polygonum yunnanense H.Lév. Synonym M WCSP (in review)
Polygonum zakirovii Czevrenidi Unresolved L TRO
Polygonum zaravschanicum Zakirov Accepted M TRO
Polygonum zeaense Kom. Synonym M TRO
Polygonum zigzag H. Lév. & Vaniot Synonym M TRO
Polygonum zippelii Meisn. Unresolved L WCSP (in review)
Polygonum zonulatum Noronha Unresolved L WCSP (in review)
Polygonum zuccarinii Small Synonym M WCSP (in review)