Compositae Working Group (CWG) (2025). Global Compositae Database. Silphium radula Nutt.. Accessed at: https://compositae.org/gcd/aphia.php?p=taxdetails&id=1107793 on 2025-03-29
Present Inaccurate Introduced: alien Containing type locality
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Transactions of the American Philosophical Society, new series, 7: [Tropicos] [details] LSID urn:lsid:compositae.org:names:BE3145D7-E8CA-4049-AA56-C3CF5E14D833 [details] Taxonomy Oct-Dec 1840 [details]