This wallflower has the typical yellow flower clusters found on a number of weedy mustard species, along with the fruit, a 1 inch long slender pod (silique), which forms below as the flowers wilt. One of several possible members of its genus, this species can best be identified by the presence and microscopic characteristics of the appressed hairs on the leaves and stems. The leaves, with a few teeth on the leaf edges, are lance-shaped all the way down the stem. Biology Professor David Sutherland of the University of Nebraska at Omaha helped with the identification to species.