Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium okamotoi Kitam.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1096368 on 2024-05-06
Present Inaccurate Introduced: alien Containing type locality
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol. 13 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:0262C3C3-3878-4770-AEAC-6D552279651F [details]