The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

You should refer instead to the current version of The Plant List.

Results

No plant names match your search for Helianthus x laetiflorus; we will try Helianthus instead.

438 plant name records match your search criteria Helianthus. The results are below.

The results can also be downloaded as a CSV file.

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

Name Status Confi­dence level Source
Helianthus acuminatus S.F.Blake Synonym M TICA
Helianthus agrestis Pollard Accepted M TICA
Helianthus alexandri Cockerell Unresolved L TICA
Helianthus × alexidis B.Boivin Unresolved L TICA
Helianthus alienus E.Watson Synonym M TICA
Helianthus altissimus L. Unresolved L TICA
Helianthus altissimus DC. Unresolved L TICA
Helianthus ambiguus Britton Accepted L TICA
Helianthus × ambiguus (Torr. & A.Gray) R.W.Long Unresolved L TICA
Helianthus ambulans E.Watson Unresolved L TICA
Helianthus amplexicaulis (Cav.) DC. Synonym M TICA
Helianthus angustifolius L. Accepted M TICA
Helianthus angustifolius (L.) Michx. ex DC. Unresolved L TICA
Helianthus angustifolius subsp. ciliaris (DC.) Anashch. Synonym L TICA
Helianthus angustifolius subsp. nuttallii Anashch. Synonym L TICA
Helianthus angustifolius var. planifolius Fernald Synonym L TICA
Helianthus annuus L. Accepted M TICA
Helianthus annuus var. argophyllus (Torr. & A.Gray) Alef. Synonym L TICA
Helianthus annuus subsp. jaegeri (Heiser) Heiser Synonym L TICA
Helianthus annuus subsp. lenticularis (Douglas ex Lindl.) Cockerell Synonym L TICA
Helianthus annuus var. lenticularis (Douglas ex Lindl.) Steyerm. Synonym L TICA
Helianthus annuus var. macrocarpus (DC.) Cockerell Synonym L TICA
Helianthus annuus subsp. petiolaris (Nutt.) Anashch. Synonym L TICA
Helianthus annuus var. texanus (Heiser) Shinners Synonym L TICA
Helianthus annuus subsp. texanus Heiser Synonym L TICA
Helianthus anomalus S.F.Blake Accepted M TICA
Helianthus apetalus Leconte ex Nutt. Unresolved L TICA
Helianthus apricus Lunell Unresolved L TICA
Helianthus araucanus Phil. Synonym L TICA
Helianthus arenicola E.Watson Unresolved L TICA
Helianthus argenteus Kunth Synonym M TICA
Helianthus argentinus A.A.Sáenz Synonym M TICA
Helianthus argophyllus Torr. & A.Gray Accepted M TICA
Helianthus argophyllus (D.C.Eaton) A. Gray. Unresolved L TICA
Helianthus aridus Rydb. Synonym M TICA
Helianthus aristatus Elliott Synonym M TICA
Helianthus arizonensis R.C.Jacks. Accepted M TICA
Helianthus asper Hort. ex Steud. Unresolved L TICA
Helianthus atacamensis Phil. Synonym M TICA
Helianthus atrorubens Michx. Unresolved L TICA
Helianthus atrorubens Lam. [Illegitimate] Unresolved L TICA
Helianthus atrorubens L. Accepted M TICA
Helianthus atrorubens var. alsodes Fernald Synonym L TICA
Helianthus atrorubens var. pubescens Kuntze Synonym L TICA
Helianthus atrorubens subsp. radula (Pursh) Anashch. Accepted L TICA
Helianthus attenuatus E.Watson Unresolved L TICA
Helianthus aureus Kunth Synonym L TICA
Helianthus aureus (Cass.) DC. Unresolved L TICA
Helianthus australis Small [Illegitimate] Unresolved L TICA
Helianthus australis Phil. Synonym M TICA
Helianthus baillonianus M.Gómez [Illegitimate] Synonym M TICA
Helianthus besseriana (Meyen & Walp.) Synonym L TICA
Helianthus besseyi Bates Unresolved L TICA
Helianthus bolanderi A.Gray Accepted M TICA
Helianthus borealis E.Watson Synonym M TICA
Helianthus bracteatus E.Watson Unresolved L TICA
Helianthus brasilicus Vell. Unresolved L TICA
Helianthus brevifolius E.Watson Accepted M TICA
Helianthus × brevifolius (E.Watson) R.C.Jacks. & Guard Unresolved L TICA
Helianthus buccinatus Sessé & Moc. Unresolved L TICA
Helianthus buddleiaeformis DC. Synonym M TICA
Helianthus buddlejiformis DC. Synonym M TRO
Helianthus buphthalmoides Hort. ex DC. Unresolved L TICA
Helianthus californicus DC. Accepted M TICA
Helianthus californicus Nutt. ex Torr. & A.Gray Unresolved L TICA
Helianthus calvus Sch.Bip. [Illegitimate] Unresolved L TICA
Helianthus campestris (Griseb.) Kuntze Synonym M TICA
Helianthus canescens (A.Gray) S.Watson Synonym M TICA
Helianthus canescens Juss. ex DC. Unresolved L TICA
Helianthus canescens Michx. Unresolved L TICA
Helianthus canus (Britton) Wooton & Standl. Synonym M TICA
Helianthus carnosus Small Accepted M TICA
Helianthus carolinianus Hill Unresolved L TICA
Helianthus cernuus (DC.) Benth. & Hook.f. Synonym M TICA
Helianthus chartaceus E.Watson Unresolved L TICA
Helianthus ciliaris DC. Accepted M TICA
Helianthus × cinereus (Torr. & A.Gray) R.C.Jacks. & Guard Unresolved L TICA
Helianthus cinereus Torr. & A.Gray Accepted M TICA
Helianthus cinereus var. sullivantii Torr. & A.Gray Synonym L TICA
Helianthus cirrhoides Lehm. Unresolved L TICA
Helianthus cochinchinensis Pers. Unresolved L TICA
Helianthus coloradensis Cockerell Unresolved L TICA
Helianthus colossus Kunze Unresolved L TICA
Helianthus copiapinus Phil. Synonym M TICA
Helianthus cordatus Lam. ex DC. Unresolved L TICA
Helianthus cornifolius Kunth Synonym M TICA
Helianthus corymbosus Poepp. ex DC. Unresolved L TICA
Helianthus couplandii B.Boivin Synonym M TICA
Helianthus crassifolius Nutt. Unresolved L TICA
Helianthus crenatus R.C.Jacks. Synonym M TICA
Helianthus crinitus Steud. Unresolved L TICA
Helianthus cucumerifolius Torr. & A.Gray Synonym M TICA
Helianthus cucumerifolius var. praecox (Engelm. & A.Gray) A.Gray Synonym L TICA
Helianthus cultus Ventsl. Unresolved L TICA
Helianthus curtissii Fernald ex E.Watson Unresolved L TICA
Helianthus cusickii A.Gray Accepted M TICA
Helianthus dalyi Britton Synonym M TICA
Helianthus dealbatus A.Gray Synonym M TICA
Helianthus debilis Nutt. Accepted M TICA
Helianthus debilis var. cucumerifolius (Torr. & A.Gray) A.Gray Synonym L TICA
Helianthus debilis subsp. cucumerifolius (Torr. & A.Gray) Heiser Accepted L TICA
Helianthus debilis f. cucumerifolius (Torr. & A.Gray) Voss Synonym L TICA
Helianthus debilis subsp. hirtus Heiser Synonym L TICA
Helianthus debilis subsp. praecox (Engelm. & A.Gray) Heiser Synonym L TICA
Helianthus debilis subsp. runyonii Heiser Synonym L TICA
Helianthus debilis var. silvestris (Heiser) Cronquist Synonym L TICA
Helianthus debilis subsp. silvestris Heiser Accepted L TICA
Helianthus debilis var. tardiflorus (Heiser) Cronquist Synonym L TICA
Helianthus debilis subsp. tardiflorus Heiser Accepted L TICA
Helianthus debilis var. vestitus (E.Watson) Cronquist Synonym L TICA
Helianthus debilis subsp. vestitus (E.Watson) Heiser Accepted L TICA
Helianthus decapetalus L. Synonym M TICA
Helianthus decapetalus Darl. Unresolved L TICA
Helianthus decapitatus L. Unresolved L TICA
Helianthus dentatus Cav. Synonym M TICA
Helianthus deserticola Heiser Accepted M TICA
Helianthus diffusus Sims Unresolved L TICA
Helianthus diffusus Moench Unresolved L TICA
Helianthus discolor S.F.Blake Synonym M TICA
Helianthus dissectifolius R.C.Jacks. Unresolved L TICA
Helianthus divaricatus L. Accepted M TICA
Helianthus divaricatus Michx. Unresolved L TICA
Helianthus divaricatus var. angustifolius Kuntze Synonym L TICA
Helianthus × divariserratus R.W.Long Accepted M TICA
Helianthus diversifolius Elliott Unresolved L TICA
Helianthus dodecapetalus Panz. Unresolved L TICA
Helianthus doronicoides Torr. & A.Gray Unresolved L TICA
Helianthus doronicoides Lam. Accepted M TICA
Helianthus × doronicoides (Lam.) R.C.Jacks. Unresolved L TICA
Helianthus douglasii Torr. & A.Gray Unresolved L TICA
Helianthus dowellianus M.A.Curtis Synonym M TICA
Helianthus eggertii Small Synonym M TICA
Helianthus elegans E.Watson Unresolved L TICA
Helianthus elongatus Small Synonym M TICA
Helianthus erythrocarpus Synonym L TICA
Helianthus esculentus Warsz. Synonym M TICA
Helianthus esculentus Rottb. Unresolved L TICA
Helianthus exasperatus E.Watson Unresolved L TICA
Helianthus excelsus Willd. Synonym L TICA
Helianthus excubitor E.Watson Unresolved L TICA
Helianthus exilis A.Gray Accepted M TICA
Helianthus fascicularis Greene Synonym M TICA
Helianthus filiformis Small Synonym M TICA
Helianthus × filiformis (Small) R.W.Long Unresolved L TICA
Helianthus floribundus E.Watson Unresolved L TICA
Helianthus floridanus A.Gray ex Chapm. Accepted M TICA
Helianthus formosus E.Watson Unresolved L TICA
Helianthus frondosus L. Unresolved L TICA
Helianthus fulgidus (Aiton) Unresolved L TICA
Helianthus gayanus Phil. Unresolved L TICA
Helianthus giganteus Cav. [Illegitimate] Unresolved L TICA
Helianthus giganteus L. Accepted M TICA
Helianthus giganteus subsp. alienus (E.Watson) Synonym L TICA
Helianthus giganteus var. ambiguus Torr. & A.Gray Unresolved L TICA
Helianthus giganteus var. subtuberosus Britton Synonym L TICA
Helianthus giganteus var. utahensis D.C.Eaton Unresolved L TICA
Helianthus gigas Michx. Unresolved L TICA
Helianthus glaucophyllus D.M.Sm. Accepted M TICA
Helianthus × glaucus (Small) D.M.Sm. & Guard Unresolved L TICA
Helianthus glaucus Small Accepted M TICA
Helianthus glutinosus Hook. & Arn. Synonym M TICA
Helianthus gracilentus A.Gray Accepted M TICA
Helianthus gracilis Bertol. Unresolved L TICA
Helianthus grandiceps S.F.Blake Synonym M TICA
Helianthus grandiflorus Wender. Unresolved L TICA
Helianthus grandiflorus Wood Unresolved L TICA
Helianthus grandiflorus Juss. ex Pers. Unresolved L TICA
Helianthus grandiflorus Wender. ex Steud. Unresolved L TICA
Helianthus grosse-serratus Pohl ex Baker Unresolved L TICA
Helianthus grosseserratus M.Martens Accepted M TICA
Helianthus grosseserratus var. hypoleucus A.Gray Synonym L TICA
Helianthus grosseserratus subsp. maximus R.W.Long Synonym L TICA
Helianthus hastatus Sessé & Moc. Synonym M TICA
Helianthus heiseri R.C.Jacks. Synonym M TICA
Helianthus herbaceus Vell. Unresolved L TICA
Helianthus heteropappus Hook. & Arn. Synonym M TICA
Helianthus heterophyllus Short Unresolved L TICA
Helianthus heterophyllus Nutt. Accepted M TICA
Helianthus hirsutus Raf. Accepted M TICA
Helianthus hirsutus var. stenophyllus Torr. & A.Gray Synonym L TICA
Helianthus hirsutus var. trachyphyllus Torr. & A.Gray Synonym L TICA
Helianthus hirtus (L.) E.H.L.Krause Unresolved L TICA
Helianthus hispidulus Elliott Unresolved L TICA
Helianthus hookeri G.Don Unresolved L TICA
Helianthus hookerianus DC. Unresolved L TICA
Helianthus hypargyreus S.F.Blake Synonym M TICA
Helianthus illinoensis Gleason Unresolved L TICA
Helianthus imbaburensis Hieron. Synonym M TICA
Helianthus impapurensis Hieron. [Illegitimate] Unresolved L TICA
Helianthus incanus Pers. Synonym L TICA
Helianthus indicus L. Synonym M TICA
Helianthus instabilis E.Watson Synonym M TICA
Helianthus insulatus E.Watson Unresolved L TICA
Helianthus integrifolius Nutt. Synonym M TICA
Helianthus integrifolius var. gracilis Nutt. Synonym L TICA
Helianthus × intermedius R.W.Long Accepted M TICA
Helianthus invenustus Greene Synonym M TICA
Helianthus jaegeri Heiser Synonym M TICA
Helianthus jelskii Hieron. Synonym M TICA
Helianthus × kellermani (Britton) R.W.Long Unresolved L TICA
Helianthus × kellermanii Britton [Illegitimate] Unresolved L TICA
Helianthus kentuckiensis McFarland & W.A.Anderson Synonym M TICA
Helianthus laciniatus (L.) E.H.L.Krause Unresolved L TICA
Helianthus laciniatus A.Gray Accepted M TICA
Helianthus × laetiflorus Pers. Accepted M TICA
Helianthus laetiflorus Pers. Unresolved L TRO
Helianthus × laetiflorus var. rigidus (Cass.) Fernald Synonym L TICA
Helianthus × laetiflorus var. subrhomboideus (Rydb.) Fernald Synonym L TICA
Helianthus × laetiflorus var. tricuspis Torr. & A.Gray Synonym L TICA
Helianthus laevigatus Torr. & A.Gray Accepted M TICA
Helianthus laevigatus subsp. reindutus (E.S.Steele) E.S.Steele Synonym L TICA
Helianthus laevis Walter Unresolved L TICA
Helianthus laevis L. Synonym L TICA
Helianthus lanatus Heiser Synonym M TICA
Helianthus lanceolatus Meyen Synonym L TICA
Helianthus latifolius W.Young. Unresolved L TICA
Helianthus laurifolius (DC.) Hook. & B.D.Jacks. Unresolved L TICA
Helianthus laurifolius (DC.) Benth. & Hook.f. Synonym M TICA
Helianthus lehmanni Hieron. ex Sodiro Unresolved L TICA
Helianthus lehmannii Hieron. Synonym M TICA
Helianthus leiostemon Raf. ex DC. Unresolved L TICA
Helianthus lenticularis Douglas Synonym M TICA
Helianthus lenticularis Hort. Unresolved L TICA
Helianthus lenticularis Douglas ex Lindl. Synonym M TICA
Helianthus leoninus E.Watson Unresolved L TICA
Helianthus leptocaulis S.F.Blake Unresolved L TICA
Helianthus lindheimerianus Scheele Unresolved L TICA
Helianthus linearis Cav. Synonym L TICA
Helianthus littoralis Chapman ex E.Watson Unresolved L TICA
Helianthus lodicatus Cuatrec. Synonym M TICA
Helianthus longifolius Pursh Accepted L TICA
Helianthus longifolius Hook. [Illegitimate] Unresolved L TICA
Helianthus longiradiatus Bertol. Synonym M TICA
Helianthus ludens Shinners Synonym M TICA
Helianthus lundstroemii Fedde Unresolved L TICA
Helianthus × luxurians (E.Watson) E.Watson Accepted M TICA
Helianthus macrocarpus DC. Synonym M TICA
Helianthus macrocarpus DC. & A.DC. Synonym M TICA
Helianthus macrophyllus Willd. Unresolved L TICA
Helianthus mandonii Sch.Bip. [Illegitimate] Synonym M TICA
Helianthus mathewsii Hochr. Synonym M TICA
Helianthus maximiliani Schrad. Accepted M TICA
Helianthus membranaceus E.Watson Unresolved L TICA
Helianthus membranifolius Poir. Synonym M TICA
Helianthus mexicanus (Walp.) Hemsl. Unresolved L TICA
Helianthus micranthus Spreng. Unresolved L TICA
Helianthus microcephalus Torr. & A.Gray Synonym M TICA
Helianthus microclinus (DC.) M.Gómez Synonym M TICA
Helianthus microphyllus Kunth Synonym M TICA
Helianthus missouriensis Schwein. ex Nutt. Unresolved L TICA
Helianthus missuricus Spreng. Unresolved L TICA
Helianthus mol Unresolved L TICA
Helianthus mollis Lam. Synonym M TICA
Helianthus mollis Buc'hoz Unresolved L TICA
Helianthus mollis Willd. Unresolved L TICA
Helianthus mollis var. cordatus S.Watson Synonym L TICA
Helianthus mollissimus E.Watson Unresolved L TICA
Helianthus montanus E.Watson Synonym M TICA
Helianthus montevidensis Spreng. ex Arechav. Unresolved L TICA
Helianthus × multiflorus (L.) Heiser & D.M.Sm. Unresolved L TICA
Helianthus multiflorus Hook. Synonym M TICA
Helianthus multiflorus L. Accepted M TICA
Helianthus multiflorus W.Young Unresolved L TICA
Helianthus navarri Phil. Accepted M TICA
Helianthus nebrascensis Cockerell Unresolved L TICA
Helianthus neglectus Otto ex A.Gray Unresolved L TICA
Helianthus neglectus Heiser Accepted M TICA
Helianthus neomexicanus Wooton & Standl. Unresolved L TICA
Helianthus nigrescens Heiser Synonym M TICA
Helianthus nitidus Lunell Unresolved L TICA
Helianthus niveus Hieron. [Illegitimate] Synonym M TICA
Helianthus niveus (Benth.) Brandegee Accepted M TICA
Helianthus niveus subsp. canescens (A.Gray) Heiser Synonym L TICA
Helianthus niveus subsp. tephrodes (A.Gray) Heiser Accepted L TICA
Helianthus nuttallii Torr. & A.Gray Accepted M TICA
Helianthus nuttallii subsp. canadensis R.W.Long Synonym L TICA
Helianthus nuttallii subsp. coloradensis (Cockerell) R.W.Long Synonym L TICA
Helianthus nuttallii subsp. nuttallii Torr. & A.Gray Accepted L TICA
Helianthus nuttallii subsp. parishii (A.Gray) Heiser Accepted L TICA
Helianthus nuttallii subsp. rydbergii (Britton) R.W.Long Accepted L TICA
Helianthus nuttallii var. rydbergii (Britton) B.Boivin Synonym L TICA
Helianthus nuttallii var. subtuberosus (Britton) B.Boivin Synonym L TICA
Helianthus oaxacanus Greenm. Synonym M TICA
Helianthus occidentalis Riddell Accepted M TICA
Helianthus occidentalis var. dowellianus (M.A.Curtis) Torr. & A.Gray Synonym L TICA
Helianthus occidentalis subsp. occidentalis Riddell Accepted L TICA
Helianthus occidentalis var. plantagineus Torr. & A.Gray Synonym L TICA
Helianthus occidentalis subsp. plantagineus (Torr. & A.Gray) Shinners Accepted L TICA
Helianthus oleifer Wall. Unresolved L TICA
Helianthus oliveri A.Gray Unresolved L TICA
Helianthus orgyalis DC. Synonym M TICA
Helianthus orgyaloides Cockerell Accepted M TICA
Helianthus ovatus Lehm. Synonym M TICA
Helianthus pallidus Farw. Unresolved L TICA
Helianthus paradoxus Heiser Accepted M TICA
Helianthus parishii A.Gray Synonym M TICA
Helianthus parviflorus Hornem. Unresolved L TICA
Helianthus parviflorus Bernh. ex Spreng. [Illegitimate] Unresolved L TICA
Helianthus parviflorus Kunth Synonym M TICA
Helianthus parviflorus var. attenuatus A.Gray Synonym L TICA
Helianthus patens Lehm. Synonym M TICA
Helianthus pauciflorus Nutt. Accepted M TICA
Helianthus pauciflorus subsp. pauciflorus Nutt. Accepted L TICA
Helianthus pauciflorus var. subrhomboideus (Rydb.) Cronquist Synonym L TICA
Helianthus pauciflorus subsp. subrhomboideus (Rydb.) O.Spring & E.E.Schill. Accepted L TICA
Helianthus pedunculatus Hort ex Link Unresolved L TICA
Helianthus peredovik Unresolved L TICA
Helianthus perennis Fritsch & E.Salisb. Unresolved L TICA
Helianthus peruvianus Klotzsch Unresolved L TICA
Helianthus petiolaris Hort. ex DC. Unresolved L TICA
Helianthus petiolaris Nutt. Accepted M TICA
Helianthus petiolaris var. canescens A.Gray Accepted L TICA
Helianthus petiolaris var. canus Britton [Illegitimate] Synonym L TICA
Helianthus petiolaris subsp. fallax Heiser Synonym L TICA
Helianthus petiolaris var. fallax (Heiser) B.L.Turner Accepted L TICA
Helianthus petiolaris var. patens Rydb. Synonym L TICA
Helianthus petiolaris subsp. petiolaris Nutt. Accepted L TICA
Helianthus pilosus Tausch Synonym M TICA
Helianthus pinnata (Vent.) E.H.L. Krause Synonym L TRO
Helianthus pinnatus (Vent.) E.H.L.Krause Unresolved L TICA
Helianthus plantagineus (Torr. & A.Gray) E.Watson Unresolved L TICA
Helianthus platycephalus Cass. Synonym M TICA
Helianthus polycephalus Cass. Unresolved L TICA
Helianthus polyphyllus Small Unresolved L TICA
Helianthus porteri (A.Gray) Pruski Accepted L TICA
Helianthus porteri Heiser [Illegitimate] Unresolved L TICA
Helianthus praecox Engelm. & A.Gray Accepted M TICA
Helianthus praecox subsp. hirtus (Heiser) Heiser Accepted L TICA
Helianthus praecox subsp. runyonii (Heiser) Heiser Accepted L TICA
Helianthus praecox var. runyonii (Heiser) B.L.Turner Synonym L TICA
Helianthus praetermissus E.Watson Accepted M TICA
Helianthus procumbens Sessé & Moc. Unresolved L TICA
Helianthus procumbens Raf. Unresolved L TICA
Helianthus procumbens Pers. Synonym M TICA
Helianthus prostratus Willd. Unresolved L TICA
Helianthus pseudoverbesinoides Hieron. ex Sodiro Unresolved L TICA
Helianthus pseudoverbesinoides Hieron. Synonym M TICA
Helianthus pseudoverbesinoides var. gracilis Hieron. Synonym L TICA
Helianthus pubescens [Ker-Gawl.] Unresolved L TICA
Helianthus pubescens Vahl Unresolved L TICA
Helianthus pubescens Hook. Unresolved L TICA
Helianthus pumilus Nutt. Accepted M TICA
Helianthus pumilus Pers. Unresolved L TICA
Helianthus quinquelobus Sessé & Moc. Synonym M TICA
Helianthus quinquenervis Hook. Synonym M TICA
Helianthus quinqueradiatus Cav. Synonym M TICA
Helianthus radula (Pursh) Torr. & A.Gray Accepted L TICA
Helianthus ramosissimus Mill. Unresolved L TICA
Helianthus reindutus (E.S.Steele) E.Watson Synonym M TICA
Helianthus resinosus Small Accepted M TICA
Helianthus revolutus Meyen Synonym L TICA
Helianthus rigidus (Cass.) Desf. Synonym M TICA
Helianthus rigidus subsp. laetiflorus (Rydb.) Heiser Synonym L TICA
Helianthus rigidus var. subrhomboideus (Rydb.) Cronquist Synonym L TICA
Helianthus rigidus subsp. subrhomboideus (Rydb.) Heiser Synonym L TICA
Helianthus riparia (Griseb.) Kuntze Synonym M TICA
Helianthus rivularis Poepp. ex DC. Unresolved L TICA
Helianthus ruderalis Ventsl. Unresolved L TICA
Helianthus rugosus S.Schauer [Illegitimate] Unresolved L TICA
Helianthus rugosus Meyen Synonym L TICA
Helianthus rydbergii Britton Synonym M TICA
Helianthus salicifolius A.Dietr. Accepted M TICA
Helianthus sarmentosus Rich. Synonym M TICA
Helianthus saxicola Small Synonym M TICA
Helianthus scaber Pohl ex Baker Unresolved L TICA
Helianthus scaberrimus Benth. Unresolved L TICA
Helianthus scaberrimus Elliott Synonym M TICA
Helianthus schweinitzii Torr. & A.Gray Accepted M TICA
Helianthus scrophulariifolius Britton Synonym M TICA
Helianthus senex S.F.Blake Synonym M TICA
Helianthus sericeus Sessé & Moc. Synonym M TICA
Helianthus serotinus Tausch Synonym M TICA
Helianthus severus E.Watson Synonym M TICA
Helianthus silphioides Nutt. Accepted M TICA
Helianthus similis (Brandegee) S.F.Blake Unresolved L TICA
Helianthus simulans E.Watson Accepted M TICA
Helianthus smithii Heiser Accepted M TICA
Helianthus smithiorum Heiser Unresolved L TICA
Helianthus sodiroi Hieron. ex Sodiro Unresolved L TICA
Helianthus sodiroi Hieron. Synonym M TICA
Helianthus sparsiflorus A.Gray Unresolved L TICA
Helianthus sparsifolius Elliott Synonym M TICA
Helianthus spathulatus Elliott Unresolved L TICA
Helianthus speciosus Hook. Synonym M TICA
Helianthus squarrosus Nutt. [Illegitimate] Unresolved L TICA
Helianthus squarrosus Kunth Synonym L TICA
Helianthus stenophyllus (Torr. & A.Gray) E.Watson Synonym M TICA
Helianthus striatus Raf. Unresolved L TICA
Helianthus strumosus L. Synonym M TICA
Helianthus stuebelii Hieron. Synonym M TICA
Helianthus subcanescens (A.Gray) E.Watson Accepted M TICA
Helianthus subniveus S.F.Blake Synonym M TICA
Helianthus subrhomboideus Rydb. Synonym M TICA
Helianthus subtuberosus Bourg. ex A.Gray Unresolved L TICA
Helianthus subtuberosus (Britton) Britton Synonym M TICA
Helianthus subtuberosus Bourg. Unresolved L TICA
Helianthus superbus E.Watson Synonym M TICA
Helianthus × superbus Bergmans Unresolved L TICA
Helianthus szyszylowiczii Hieron. Synonym M TICA
Helianthus tenellus Raf. Unresolved L TICA
Helianthus tenuifolius Elliott Unresolved L TICA
Helianthus tephrodes A.Gray Synonym L TICA
Helianthus tetragonus Moc. ex DC. [Illegitimate] Synonym L TICA
Helianthus tetrapterus Ortega Synonym L TICA
Helianthus thurifer Molina Synonym M TICA
Helianthus tomentosus Michx. Synonym M TICA
Helianthus tomentosus Elliott [Illegitimate] Unresolved L TICA
Helianthus trachaefolius Wood Unresolved L TICA
Helianthus trachelifolius Mill. Synonym M TICA
Helianthus tracheliifolius Hook. Unresolved L TICA
Helianthus tricuspis Elliott Synonym M TICA
Helianthus trilobatus Link Synonym M TICA
Helianthus trilobatus Sessé & Moc. Unresolved L TICA
Helianthus trinervis hort.madr. ex DC. Unresolved L TICA
Helianthus trinervis Unresolved L TICA
Helianthus triqueter Ortega Synonym M TICA
Helianthus truncatus Schwein. ex Elliott Unresolved L TICA
Helianthus truxillensis Kunth Synonym M TICA
Helianthus tubaeformis Nutt. Synonym M TICA
Helianthus tubaeformis Jacq. Synonym M TICA
Helianthus tuberosus Parry Unresolved L TICA
Helianthus tuberosus L. Accepted M TICA
Helianthus tuberosus var. subcanescens A.Gray Synonym L TICA
Helianthus tubiformis Ortega [Illegitimate] Synonym M TICA
Helianthus undulatus Chapm. Unresolved L TICA
Helianthus uniflorus Nutt. Synonym L TICA
Helianthus utahensis (D.C.Eaton) A.Nelson Unresolved L TICA
Helianthus validus E.Watson Synonym M TICA
Helianthus verbesinoides Kunth Synonym M TICA
Helianthus vernalis E.Watson Unresolved L TICA
Helianthus × verticillatus E.Watson Accepted M TICA
Helianthus verticillatus Small Unresolved L TICA
Helianthus vestitus E.Watson Synonym M TICA
Helianthus vicetinus Turra ex Zang. Unresolved L TICA
Helianthus virgatus Lam. Unresolved L TICA
Helianthus viridior S.F.Blake Synonym M TICA
Helianthus virilis E.Watson Unresolved L TICA
Helianthus vulgaris W.Young Unresolved L TICA