Compositae Working Group (CWG) (2021). Global Compositae Database. Petasites frigidus var. sagittatus (Banks ex Pursh) Chern.. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1242050 on 2025-03-12
Contributed data: Basionym Data only shown for fields conflicting with the consensus taxon record Tussilago sagittata Pursh [IPNI] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Petasites frigidus Fries var. sagittatus (Banks ex Pursh) Chern. [IPNI] [details] LSID urn:lsid:compositae.org:names:61375542-EF10-4C65-B3AB-1EAA6DC8A996 [details]