Compositae Working Group (CWG) (2021). Global Compositae Database. Hieracium vahlii Froel.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1198696 on 2025-03-26
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Froel. in Candolle, Prodr. 7. 1838. [Euro+Med] J.A. von Froelich - in Candolle, Prodr. 7. 1838 [Cichorieae Portal] [details] LSID urn:lsid:compositae.org:names:18CCAAAE-E224-4F3A-AEC9-AECAADC0E01A [details] Taxonomy late Apr 1838 [details]