Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium siegerti Sch.Bip. ex Nyman. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1208789 on 2024-05-08
original descriptionConsp. Fl. Eur.: 408 (1879) page(s): 408 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Consp. Fl. Eur. [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:13C89CD9-B945-4B88-8EF3-E428663F3BBD [details]