Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium americanum (A.Gray) K.Schum.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1189818 on 2024-05-07
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (A. Gray) K. Schum. [Preliminary Checklist of North American Compositae] (A. Gray) K. Schum. [Tropicos] K.Schum. [Govaerts World Compositae Checklist A-G] [details] Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Carduus americanus Rydb. [Govaerts World Compositae Checklist A-G] Cirsium acaule var. americanum A. Gray [Tropicos] Cnicus carlinoides Schrank var. americanus A.Gray [IPNI] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium americanum (A. Gray) K. Schum. [Preliminary Checklist of North American Compositae] Cirsium americanum (A. Gray) K. Schum. [Tropicos] Cirsium americanum K.Schum. [Govaerts World Compositae Checklist A-G] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Just's Bot. Jahresber. 29(1) [Govaerts World Compositae Checklist A-G] Just's botanischer Jahresbericht. 29(1[3]): [Tropicos] [details] LSID urn:lsid:compositae.org:names:19A87BBA-D469-4311-A2F2-80F04A93BD24 [details]