Compositae Working Group (CWG) (2021). Global Compositae Database. Cnicus pycnocephalus Roth. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1194590 on 2024-10-27
original description(1794). in Usteri, Ann. Bot. 8 page(s): 8 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Ann. Bot. (Usteri) 8 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:33B5AFE0-16DB-4AEF-AD28-9956F74A6961 [details]