Draba globosa var. sphaerula (J.F. Macbride & Payson) O.E. Schulz
Draba globosa var. sphaerula (J.F. Macbride & Payson) O.E. Schulz is a synonym sensu FNA Ed. Comm., 2010 of:
Draba densifolia Nuttall, an accepted species name sensu FNA Ed. Comm., 2010.