D. tenuifolia: stems 1-2 feet high, glabrous and somewhat glaucous, emitting a disagreeable smell when rubbed; leaves irregularly pinnate, with few lanceolate or oblong, entire or coarsely-toothed segments, the upper ones often entire or nearly so; flowers large, lemon-coloured; pods in a loose raceme, about 1 1/2 inch long, spreading, with numerous small seeds distinctly arranged in two rows. - Old walls, ruins, and waste places. Fl. June to October.
D. muralis: annual; stem branching from the base, usually about six inches high; leaves mostly radical, or crowded at the base, ovate-lanceolate, sinuately toothed, sometimes pinnatifid; flowers much smaller than the last, the pods and seeds similar, but also smaller. - Fields and waste places in the south, near the sea. Fl. all summer.