Compositae Working Group (CWG) (2021). Global Compositae Database. Helianthus ambiguus (Torr. & A.Gray) Britton. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1122605 on 2024-05-14
original description(1954). Rhodora 56 page(s): 202 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helianthus ×ambiguus (Torr. & A.Gray) Britton [IPNI] [details] LSID urn:lsid:compositae.org:names:BA6B70AE-2142-42E8-AB3C-2A6DE910C331 [details]