Helianthus platycephalus Cass.

First published in G.-F.Cuvier, Dict. Sci. Nat., ed. 2. 20: 352 (1821), nom. superfl.
This species is a synonym of Helianthus annuus

POWO follows these authorities in synonymising this name:

  • Belyaeva, I. & Govaerts, R. in Belyaeva I. & Govaerts, R. (2011). Personal communication. Personal Communication (Medicinal Plant Checklist) 1. [Cited as Helianthus annuus.]
  • GCC in GCC (2011). Global Compositae Checklist. Global Compositae Checklist http://compositae.landcareresearch.co.nz/. [Cited as Helianthus annuus.]
  • Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur. Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden. [Cited as Helianthus annuus.]

Other Data

Other Kew resources that provide information on this taxon:


  • 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