Compositae Working Group (CWG) (2025). Global Compositae Database. Cirsium longifolium Boiss.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1096586 on 2025-03-22
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium longifolium [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:07980676-AB31-4E70-8C3F-6AEB87816F8F [details] Taxonomy Sep-Oct 1875 [details]