Asteraceae
Helianthus

Helianthus maximiliani Schrad.

First published in Index Seminum (GOET, Gottingensis) 1835: 3 (1835)
This species is accepted
The native range of this species is Canada to NE. Mexico. It is a perennial and grows primarily in the temperate biome.

Distribution

Native to:

Alabama, Alberta, Arkansas, British Columbia, California, Colorado, Connecticut, Delaware, District of Columbia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Mexico Northeast, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Ontario, Pennsylvania, Québec, Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wisconsin, Wyoming

Introduced into:

Czechoslovakia

Synonyms

Heterotypic Synonyms

Classification

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Publications

POWO follows these authorities in accepting this name:

  • Knapp, W.M. & Naczi, R.F.C. (2021). Vascular plants of Maryland, USA. A comprehensive account of the state's botanical diversity. Smithsonian Contributions to Botany 113: 1-151.
  • Lustyk, P. & Doležal, J. (eds.) (2024). Additions to the flora of the Czech Republic. XXII. Zprávy Ceské Botanické Spolecnosti 59: 41-139.
  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Kew Backbone Distributions

  • Lustyk, P. & Doležal, J. (eds.) (2024). Additions to the flora of the Czech Republic. XXII. Zprávy Ceské Botanické Spolecnosti 59: 41-139.

Other Data

Other Kew resources that provide information on this taxon:

Date Reference Identified As Barcode Type Status Has image?
Pammel, L.H. [59] United States K002499882 Yes
Lindheimer, F. [261] United States K001092034 Type Yes
Hooker, J.D.; Gray, A. [s.n.] United States K002499904 Yes
s.coll. [290] United States K002499883 Yes
Warnock, B.H. [W1090] United States K002499890 Yes
Scoggan, H.J. [11450] Canada K002499878 Yes
Breitung, A.J.; Budd, A.C. [5793] Canada K002499880 Yes
s.coll. [s.n.] K002499907 No
Warnock, B.H. [45-42] United States K002499896 Yes
Bush, B.F. [182] United States K002499884 Yes
Moss, E.H. [1585] Canada K002499873 Yes
Lindheimer [925] United States K002499894 Yes
Moss, E.H. [2051] Canada K002499874 Yes
Moss, E.H. [2032] Canada K002499872 Yes
Palmer, E. [2044] United States K002499888 Yes
Drumd [[163]] K002499905 Yes
Lindheimer, F. [261] United States K001092035 Type Yes
Oliver, J.C. [s.n.] United States K001092031 Type Yes
Scoggan, H.J. [4411] Canada K002499877 Yes
Reverchon, J. [1451] United States K002499891 Yes
Lyon, W.S. [s.n.] United States K001092032 Unknown Type Material Yes
Schuette, J.H. [s.n.`] K002499906 Yes
Wright, C. [336] United States K002499892 Yes
Lindheimer, F. [260] United States K002499895 Yes
Moss, E.H. [1311] Canada K002499875 Yes
Baldwin, W.K.W.; Breitung, A.J. [3492] Canada K002499879 Yes
s.coll. [s.n.] K002499909 Yes
Johnston, E.L. [s.n.] United States K002499881 Yes
Parish, S.B.; Parish, W.F. [1025] United States K001092033 Type Yes
Reverchon, J. [1451] United States K002499893 Yes
Bush, B.F. [9692] United States K002499885 Yes
Drummond [163] United States K002499903 Yes
Moss, E.H. [1941] Canada K002499876 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