Compositae Working Group (CWG) (2021). Global Compositae Database. Carduus obvallatus Steud.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1180907 on 2024-05-13
original description(1821). Nomencl. Bot. [Steudel] page(s): 153 [details]
From other sources
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Nomencl. Bot. 1 [Govaerts World Compositae Checklist A-G] [details] LSID urn:lsid:compositae.org:names:F2B3A0F6-36EC-4097-8A96-5245B6ACD808 [details]