Compositae Working Group (CWG) (2024). Global Compositae Database. Helianthus petiolaris var. patens (Lehm.) Rydb. ex Porter & Britton. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1161526 on 2025-03-20
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Helianthus petiolaris Nutt. var. patens (Lehm.) Rydb. ex Porter & Britton [IPNI] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Memoirs of the Torrey Botanical Club 5(22): [Tropicos] [details] LSID urn:lsid:compositae.org:names:72F9B358-579D-4B5E-9B5F-2087E5C3F795 [details]