Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium umbrosum subsp. crepidifolium (Arv.-Touv.) Gottschl.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1222891 on 2025-03-10
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Hieracium umbrosum Jord. subsp. crepidifolium (Arv.-Touv.) Gottschl. [IPNI] [details] LSID urn:lsid:compositae.org:names:36775092-5D74-4381-8AC8-CF8178D53EAD [details] Taxonomy before 6 Aug 2007 [details]