Helianthus annuus var. macrocarpus (DC.) Cockerell

First published in Amer. Naturalist 49: 611 (1915)
This variety is a synonym of Helianthus annuus

POWO follows these authorities in synonymising this name:

  • Flora of North America Editorial Committee (2006). Asteraceae. Flora of North America North of Mexico 21: 1-616. Oxford University Press, New York, Oxford. [Cited as Helianthus annuus.]
  • GCC in GCC (2011). Global Compositae Checklist. Global Compositae Checklist http://compositae.landcareresearch.co.nz/. [Cited as Helianthus annuus.]
  • Wu, Z. & Raven, P.H. (eds.) (2011). Asteraceae. Flora of China 20-21: 1-992. Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis). [Cited as Helianthus annuus.]

Other Data

Other Kew resources that provide information on this taxon:

Sources

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2022. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0