Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium opacum (Kitam.) Kadota. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1133795 on 2024-05-06
Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Cirsium lucens Kitam. var. opacum Kitam. [IPNI] [details] LSID urn:lsid:compositae.org:names:EBA8F260-8507-490C-B8CF-859E0E05C297 [details] Taxonomy 22 Jun 2006 [details]