Compositae Working Group (CWG) (2021). Global Compositae Database. Jacea nigrescens (Willd.) Soják. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1212880 on 2025-03-24
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Soják in Cas. Nár. Muz., Odd. Prír. 140. 1972. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:3BB4889B-E343-40E2-838C-F9532FE9B50F [details]