Foetid annual or biennial; stems ascending to erect, branching, leafy or not, (10)-30-40-(60) cm tall, glabrous or hairy with sparse stiff reflexed hairs. Lvs mostly basal, glaucescent, very variable, long-petiolate, glabrous to sparsely hairy; lower lvs obovate with sinuate margins to pinnatifid with entire or shallowly toothed margins, (3)-5-15 × 1-4 cm; upper lvs similar in shape, usually smaller. Racemes glabrous or sparsely hairy, 10-30-(60) cm tall. Pedicels 0.5-2 cm long. Sepals narrow-triangular, glabrous or sparsely hairy, 3.5-4 × 1-2 mm. Petals yellow, spathulate, shortly clawed, 3-7 × 2-4.5 mm. Silique 20-40-(45) × 1.5-2.5-(3) mm, without gynophore; beak seedless. Seeds oblong, brown, 1-1.5 mm long.