Perennial, 20-45 cm tall, erect, simple, rarely branched above, ± hairy (specially below) with simple and forked hairs. Radical leaves spathulate or obovate-oblong, 20-40 mm long, 5-15 mm broad, stalked, toothed; apex obtuse or rounded, often densely hairy; cauline leaves oblong, sessile, 10-20 mm long, 3-8 mm broad, toothed below with apex somewhat elongated and entire, usually slightly auricled at base, amplexicaul, sparsely hairy. Racemes 20-30-flowered, lax, up to 12 cm long in fruit. Flowers 4-5 mm across, white rarely slightly pinkish; pedicels 8-12 mm long in fruit, suberect. Sepals 3-4 mm long. Petals 5-7 mm long, 1.5-2 mm broad. Stamens 2.5:3 mm long. Siliquae oblong-linear, 35-60 mm long, 1-1.5 mm broad, compressed, usually erect with suberect pedicels, glabrous; valves 1-veined; style 0.5 mm long with a minute depressed stigma; seeds 25-35 in each locule, c. 1 mm long, margined.