Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus cynara E.H.L.Krause. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1194296 on 2025-04-03
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Deutschl. Fl. , ed. 2, 14 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:3C3832EA-7300-4E2C-BF18-97E6AC716CBE [details]