Compositae Working Group (CWG) (2025). Global Compositae Database. Haplopappus carthamoides var. erythropappus (Rydb.) H.St.John. Accessed at: https://compositae.org/gcd/aphia.php?p=taxdetails&id=1242476 on 2025-09-13
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Rydb.) H. St. John [Preliminary Checklist of North American Compositae] (Rydb.) H. St. John [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Haplopappus carthamoides (Hook.) A. Gray var. erythropappus (Rydb.) H. St. John [Preliminary Checklist of North American Compositae] Haplopappus carthamoides var. erythropappus (Rydb.) H. St. John [Tropicos] [details] LSID urn:lsid:compositae.org:names:516A2653-EFB8-44EE-B5F5-88BF51E375CB [details]