Compositae Working Group (CWG) (2024). Global Compositae Database. Crepis nigricans Viv.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1089349 on 2025-04-03
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record D. Viviani, Fl. Libyc. Spec.. 1824 [Cichorieae Portal] Viv.. 1824. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:5D600082-F224-4126-8E95-321A72C10FBA [details] Taxonomy ori:FNA [details] Type material [Libya] "H. in montibus Cyrenaicae" [details]