Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium approximatum Jord.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1170788 on 2025-03-25
original description(1848). Cat. Gr. Jard. Dijon page(s): 20 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Cat. Graines Jard. Dijon 1848: 20. 1848 [Cichorieae Portal] Jord.. 1848. [Euro+Med] [details] LSID urn:lsid:compositae.org:names:236E4662-2FB5-4A0B-9AF7-1CAA59C10D49 [details]