Haplopappus uniflorus var. howellii (A. Gray) M.E. Peck

Haplopappus uniflorus var. howellii (A. Gray) M.E. Peck is a synonym sensu FNA Ed. Comm., 2006b of:

Pyrrocoma uniflora (Hooker) Greene var. uniflora, an accepted variety name sensu FNA Ed. Comm., 2006b.