Asteraceae
Helianthus

Helianthus debilis Nutt.

First published in Trans. Amer. Philos. Soc., n.s., 7: 367 (1841)
This species is accepted
The native range of this species is E. U.S.A. to Texas. It is an annual or biennial and grows primarily in the temperate biome.

Distribution

Native to:

Alabama, Connecticut, Florida, Georgia, Louisiana, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, New York, North Carolina, Pennsylvania, Rhode I., South Carolina, Texas, Vermont, Virginia, West Virginia

Introduced into:

Austria, Azores, Cuba, Czechoslovakia, France, Germany, India, Jawa, Korea, KwaZulu-Natal, Mozambique, Northern Provinces, Norway, Queensland, Taiwan, Western Australia

Synonyms

Homotypic Synonyms

Accepted Infraspecifics

Classification

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Publications

POWO follows these authorities in accepting this name:

  • Hassler, M. & Muer, T. (2022). Flora Germanica: alle Farn- und Blütenpflanzen Deutschlands in Text und Bild 2: 865-1712. Verlag Regionalkultur, Uberstadt-Weiher.
  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
  • Schäfer, H. (2021). Flora of the Azores a field guide: 1-445. Margraf Publishers GmbH.

Kew Backbone Distributions

  • Hassler, M. & Muer, T. (2022). Flora Germanica: alle Farn- und Blütenpflanzen Deutschlands in Text und Bild 2: 865-1712. Verlag Regionalkultur, Uberstadt-Weiher.

Other Data

Other Kew resources that provide information on this taxon:

Date Reference Identified As Barcode Type Status Has image?
s.coll. [s.n.] K003040097 Yes
s.coll. [17129] Australia K003040096 Yes
Matthew, K.M. [53137] India K003040092 Yes
[W. Gamble] [26978] K003040093 Yes
Gray, A. [s.n.] India K003040099 Yes
Bourne; Gray, A. [2647] India K003040101 Yes
s.coll. [[7132]] K003040100 Yes
Deighton, F.C. [3795] K003040098 Yes
Curtiss, A.H. [1455] United States K001065945 Type Yes
s.coll. [s.n.] K003040095 Yes
Torrey, J.; Gray, A. [s.n.] K003040094 Yes

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Science Photographs

    • Copyright applied to individual images