Compositae Working Group (CWG) (2021). Global Compositae Database. Haplopappus eximius subsp. peirsonii D.D.Keck. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1224215 on 2025-04-18
original description(1940). Madroño 5 page(s): 169 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record D.D. Keck [Preliminary Checklist of North American Compositae] D.D. Keck [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Haplopappus eximius H.M. Hall ssp. peirsonii D.D. Keck [Preliminary Checklist of North American Compositae] Haplopappus eximius subsp. peirsonii D.D. Keck [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Madrono; Journal of the California Botanical Society 5(5): [Tropicos] [details] LSID urn:lsid:compositae.org:names:DE091D81-75EC-4C48-958C-F7AB6E0C1B98 [details] Taxonomy as "Peirsonii" [details]