Erect, branched, annual herbs up to 1 m high; lower part of stem densely hispid with coarse, spreading or retrorse hairs, sparsely hispid to subglabrous in the upper part. Leaves up to 20 cm long, usually hispid at least on the lower surface of the nerves. Lower leaves petiolate, lyrate-pinnatifid, 4-6-jugate; terminal lobe obovate, obtuse, ± confluent with the upper lateral lobes, coarsely dentate; lateral lobes ± oblong, dentate. Upper leaves sessile or shortly petiolate, ovate-oblong to lanceolate, acute, serrate-dentate. Flowers yellow, the petals c. 1 cm long. Fruiting pedicels short, stout, erect — spreading. Siliquae 2-5-4 cm long (including the beak), 2-5-4 mm in diameter, ± terete; valves 3-5 nerved, glabrous or hispid; beak 1-1-5 cm long, conical-subulate, frequently 1-seeded. Seeds mostly 8-12, globose, 1-1-4 mm in diameter, reddish-brown or brown-black.
