Compositae Working Group (CWG) (2021). Global Compositae Database. Cirsium subsect. Angustiinvolucrae Kadota. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1082695 on 2024-05-03
original description(1995). Fl. Jap. (Iwatsuki et al., eds.) 3b page(s): 135 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Flora of Japan (ed. 2) 3b: [Tropicos] [details] LSID urn:lsid:compositae.org:names:B9CED9A2-F80B-4E66-9CA5-DD0FA8B5682C [details]