Compositae Working Group (CWG) (2024). Global Compositae Database. Hieracium umbellatum var. boreale (Fr.) Trautv.. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1163146 on 2025-03-25
Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Hieracium umbellatum L. var. boreale (Fr.) Trautv. [IPNI] [details] LSID urn:lsid:compositae.org:names:D1BFF2E6-CA11-4913-87B9-8A3C5CC19B6A [details]