Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium variabile Porta. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1146704 on 2024-05-06
original description(1905). Atti Imp. Regia Accad. Rovereto Ser. III, xi. Fasc. 2 page(s): 5 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium Ă—variabile Porta [Govaerts World Compositae Checklist A-G] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Atti Imp. Regia Accad. Rovereto , III, 11(2) [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:CBE5A6C9-E298-4DFF-84F8-EFC00A1D8901 [details] Taxonomy Fedde, Repert. Nov. Sp.viii. 484. [details]