Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium petrakii kozl. & Woronow ex Grossh.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1125416 on 2024-05-01
original description(1934). Fl. Kavkaza [Grossheim] 4 page(s): 189 [details]
From other sources
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Cirsium ×petrakii Kozl. & Woronow ex Grossh. [IPNI] [details] LSID urn:lsid:compositae.org:names:A2016EFB-9DA1-4FC4-9600-422B1E7E80E8 [details]