Taxonomy et Man. Bot. San Franc. Bay (1894)217 [details]
Compositae Working Group (CWG) (2025). Global Compositae Database. Carduus amplifolius (Greene) Greene. Accessed at: https://compositae.org/gcd/aphia.php?p=taxdetails&id=1141916 on 2025-09-12
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record Greene [Govaerts World Compositae Checklist A-G] Greene [IPNI] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Carduus amplifolius Greene [Govaerts World Compositae Checklist A-G] Carduus amplifolius Greene [IPNI] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Proc. Acad. Nat. Sci. Philadelphia [IPNI] Proceedings of the Academy of Natural Sciences of Philadelphia 44(3): [Tropicos] [details] LSID urn:lsid:compositae.org:names:1BD0B7CB-B188-43C5-B438-C916C9A3D7B5 [details] Taxonomy et Man. Bot. San Franc. Bay (1894)217 [details]