Compositae Working Group (CWG) (2025). Global Compositae Database. Helianthus verticillatus Small. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1098470 on 2025-03-29
LSID urn:lsid:compositae.org:names:B35EAF7D-FA30-497A-B79B-7A1BFD1C5283 [details] Taxonomy 10 Sep 1898 [details] Type material Aug 1892, 288, S.M.Bain, null NY [details]