Compositae Working Group (CWG) (2021). Global Compositae Database. Silphium collinum Greene. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1128428 on 2024-06-29
original description(1899). Pittonia 4 page(s): 44 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Pittonia 4(20E): [Tropicos] [details] LSID urn:lsid:compositae.org:names:77091290-1B99-42FF-817C-5A38D2C581AF [details]