Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium portae Hausm.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1165664 on 2024-04-30
original description(1858). Verh. K.K. Zool.-Bot. Ges. Wien 8 page(s): 373 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Verh. K. K. Zool.-Bot. Ges. Wien 8 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:9C148B71-12C2-4163-82E7-0145BF65835C [details]