Compositae Working Group (CWG) (2021). Global Compositae Database. Heleniastrum occidentale Greene. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1146375 on 2025-03-24
original description(1894). Man. Bot. San Francisco page(s): 202 [details]
taxonomy sourceBierner, M.W. (1972). Taxonomy of <em>Helenium</em> sect. <em>Tetrodus</em> and a conspectus of North American <em>Helenium</em> (Compositae). <em>Brittonia.</em> 24: 331-355. page(s): 338; note: Synonymy [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Manual of the Botany of the Region of San Francisco Bay ... [Tropicos] [details] LSID urn:lsid:compositae.org:names:94B29D1B-4015-4569-8F51-F799319D672D [details] Taxonomy 2 Feb 1894 [details]