Compositae Working Group (CWG) (2021). Global Compositae Database. Onopordum tetragonocarpum Arènes. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1123650 on 2024-09-30
original description(1951). Notul. Syst. (Paris) 14 page(s): 190 [details]
Unverified
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Notulae Systematicae. Herbier du Museum de Paris 14(3): [Tropicos] [details] LSID urn:lsid:compositae.org:names:E91B5B2D-3F38-4AF1-AA3A-32FB6AC07EFF [details]