Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium tweedyi (Rydb.) Rydb.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1172950 on 2024-05-06
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record Rydb. [IPNI] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium tweedyi Rydb. [IPNI] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Flora of the Rocky Mountains [Tropicos] [details] LSID urn:lsid:compositae.org:names:B8A06D0C-B93A-4F79-AB3E-28933973E731 [details] Taxonomy isonym -- as "Tweedyi" [details]