Lesquerella argyraea var. diffusa (Rollins) Rollins Dataset Update on the Brassicaceae Species Checklist Rank VARIETY Published in Rollins, R.C. Cruciferae Continental North Amer.: 607. (1993). Classification family Brassicaceae genus Physaria Name Homonyms Lesquerella argyraea var. diffusa (Rollins) Rollins Lesquerella argyraea subsp. diffusa (Rollins) Rollins & E.A.Shaw