Compositae Working Group (CWG) (2021). Global Compositae Database. Haplopappus microcephalus Cronquist. Accessed at: https://www.compositae.org/aphia.php?p=taxdetails&id=1167014 on 2025-03-24
original description(1951). Madroño 11 page(s): 186 [details]
Unreviewed
Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Madrono; Journal of the California Botanical Society 11(4): [Tropicos] [details] LSID urn:lsid:compositae.org:names:F20C37E9-2333-4AD0-BCA1-0853DD34FADD [details]