Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium occidentale Nyár.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1186655 on 2025-03-28
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Nyár. in Acta Fauna Fl. Universali, Ser. 2, Bot. 3. 1940 [Cichorieae Portal] Nyár. in Acta Fauna Fl. Universali, Ser. 2, Bot. 3. 1940. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:A2727A9B-97D3-402D-826C-7080E0C66180 [details]