Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium orthophyllum Beck. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1174520 on 2024-09-18
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Beck, Fl. Hernstein. 1884. [Euro+Med] Fl. Hernstein: 272. 1884 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:0044C661-CBB7-4A70-B807-302911C9FAB7 [details]