Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium horridulum var. megacanthum (Nutt.) D.J.Keil. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1157855 on 2024-09-24
Present Inaccurate Introduced: alien Containing type locality
From other sources
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Nutt.) D.J. Keil [Preliminary Checklist of North American Compositae] (Nutt.) D.J. Keil [Tropicos] [details] Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Cirsium megacanthum [Govaerts World Compositae Checklist A-G] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium horridulum Michx. var. megacanthum (Nutt.) D.J. Keil [Preliminary Checklist of North American Compositae] Cirsium horridulum Michx. var. megacanthum (Nutt.) D.J.Keil [IPNI] Cirsium horridulum var. megacanthum (Nutt.) D.J. Keil [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Sida 21 [Govaerts World Compositae Checklist A-G] Sida 21(1): [Tropicos] [details] LSID urn:lsid:compositae.org:names:CF1D87A9-E65B-4EDD-B8BA-B117557EEE2E [details] Taxonomy 20 Aug 2004 [details]