Haplopappus spinulosus subsp. cotula (Small) H.M. Hall

Haplopappus spinulosus subsp. cotula (Small) H.M. Hall is a synonym sensu FNA Ed. Comm., 2006b of:

Xanthisma spinulosum (Pursh) D.R. Morgan & R.L. Hartman var. spinulosum, an accepted variety name sensu FNA Ed. Comm., 2006b.