Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium cylleneum Halácsy. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1192462 on 2024-05-05
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Étud. Pl. Vasc. Grèce 4 [Govaerts World Compositae Checklist A-G] Halácsy, Consp. Fl. Graec., Suppl. 1. 1908. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:110B8D5F-E347-4558-80D7-8EE7CC020016 [details]