Compositae Working Group (CWG) (2024). Global Compositae Database. Silphium trifoliatum f. praecisum L.M.Perry. Accessed at: https://compositae.org/gcd/aphia.php?p=taxdetails&id=1164828 on 2025-03-28
original description(1937). Rhodora 39 page(s): 291 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record L.M. Perry [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Silphium trifoliatum f. praecisum L.M. Perry [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Rhodora 39(464): [Tropicos] [details] LSID urn:lsid:compositae.org:names:CF463C37-D550-4A1A-A123-722696676329 [details] Type material 28 Aug 1924, J.R.Churchill, holotype GH [details]