Draba verna (syn. Erophila verna) the spring draba, shadflower, nailwort, common whitlowgrass, vernal whitlow grass, early witlow grass or whitlow-grass is a species of plant in the mustard family, Brassicaceae. D. verna has the unique trait of bifid petals, not found anywhere else in the genus Draba. The plant consists of a few flowers with branching stems and the leaves are focused around the base of the plant. The seeds are located in the flower but are not equipped with any sort of wind dispersal ...