Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium villadraeum Arv.-Touv.. Accessed at: https://compositae.org/aphia.php?p=taxdetails&id=1169597 on 2024-10-06
original description(1913). Hier. Gall. Hisp. Cat. page(s): 116 [details]
Unverified
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Arv.-Touv., Hier. Gall. Hisp. Cat. 1913. [Euro+Med] Hier. Gall. Hisp. Cat.: 116. 1913 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:614FB25C-5D4C-407C-8558-168A25B9FE39 [details]