Compositae Working Group (CWG) (2021). Global Compositae Database. Helianthus subrhomboideus Rydb.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1171208 on 2024-05-15
original description(1900). Mem. New York Bot. Gard. 1 page(s): 419 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Man. Fl. N. States [Britton] [IPNI] Mem. New York Bot. Gard. 1 : 419 (1900) [Vascular Plants of Russia] Memoirs of the New York Botanical Garden 1: [Tropicos] [details] LSID urn:lsid:compositae.org:names:C995D3A6-7326-4F0D-853F-1F1D522FC974 [details] Type material 29-31 Jul 1893, 1627, P.A.Rydberg, null NY [details]