Draba asprella var. asprella

Fruit valves hirsute, trichomes simple and unequally 2-rayed, (0.2-)0.3-1 mm. 2n = 30.

Flowering Mar-May. Rocky igneous soil in pine-oak woodlands; 1500-2500 m; Ariz.

Variety asprella is known only from Coconino and Yavapai counties in central Arizona.