Compositae Working Group (CWG) (2025). Global Compositae Database. Haplopappus rubiginosus var. phyllocephalus (DC.) A.Gray. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1237772 on 2025-09-12
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (DC.) A. Gray [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Haplopappus rubiginosus var. phyllocephalus (DC.) A. Gray [Tropicos] [details] LSID urn:lsid:compositae.org:names:7E907CC4-FD96-4F0B-AF22-E478507CD0C4 [details] Taxonomy as "Aplopappus" [details]