Erect, rather slender annuals up to 60 cm high; lower part of stem densely hispid or patently hairy, upper part subglabrous or glabrous. Basal leaves rosulate, petiolate, up to 25 cm long, runcinate-pinnatisect, 4—12-jugate, ciliate and densely hispid beneath; lower lobes smallest, upwards gradually bigger, ± oblong, dentate or serrate-dentate; terminal lobe broadly ovate to subcircular, obtuse, lobulate, serrate-dentate. Upper leaves much smaller, sessile, oblong-lanceolate to linear, acute, entire or denticulate. Racemeserminal, at first dense, in fruit very lax. Flowers pale yellow, sometimes tinged with mauve on fading, the petals 5-7 X dz 1 ? 5 mm, spathulate. Fruiting pedicels erect to spreading or the lower ones ± recurved, 1 • 5-2 cm long. Siliquae 3-5 cm long (incl. beak), 2-2-8 mm broad, linear-attenuate; valves bulged by the seeds; beak 1-2 cm long, straight or curved, stoutly subulate, 0- or 1-seeded at its base. Seeds globose, brown, about 1 mm in diameter.
