Slender erect annual herbs up to 45 cm high, simple or branched. Indumentum variÂable: stems and leaves with appressed branched and spreading simple hairs; inÂflorescence glabrous or very thinly hairy. Basal leaves rosulate, 4-16 cm long, oblanceo-late, petiolate, entire, dentate or pinnatipar-tite, the lobes short, broad, rounded or acute, entire or lobulate. Stem leaves few, smaller, oblong-lanceolate, entire or remotely dentiÂculate, sagittate, amplexicaul. Racemes dense in flower, lax in fruit. Sepals c. 1 • 5 mm long, green. Petals 1-8-3 mm long, clawed, white. Siliculae on almost horizontally-spreading pedicels 0-5-1 -7 cm long, 6-9 mm long, 4-8 mm broad, obcordate-triangular, emargi-nate, lateral margins almost straight; style less than 0-5 mm long. Seeds up to 12 per locule, 0-8-1 mm long.