Compositae Working Group (CWG) (2021). Global Compositae Database. Haplopappus spinulosus var. glaberrimus (Rydb.) S.F.Blake. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1242940 on 2025-03-25
original description(1917). Contributions from the Gray Herbarium of Harvard University 52: page(s): 24 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record (Rydb.) S.F. Blake [Preliminary Checklist of North American Compositae] (Rydb.) S.F. Blake [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Haplopappus spinulosus (Pursh) DC. var. glaberrimus (Rydb.) S.F. Blake [Preliminary Checklist of North American Compositae] Haplopappus spinulosus var. glaberrimus (Rydb.) S.F. Blake [Tropicos] [details] LSID urn:lsid:compositae.org:names:6F772D3C-E3AB-4696-A8F4-EC2C4C0B7232 [details] Taxonomy as "Aplopappus" [details]