Annual herb, 10-30 cm tall, erect, often with a basal rosette of leaves only and a slender tap root. Basal leaves 2-7-jugate, 2-10 cm long, 1-2.5 cm broad, glabrous or hairy with simple hairs; leaflets ovate-orbicular, except the terminal one which is slightly larger and subreniform, shortly stalked, subsessile to sessile, very variable in size, subentire to irregularly few lobulate and toothed, usually 6-10 mm in diam. Racemes 10-30-flowered, up to 10 cm long in fruit. Sepals 2-2.5 mm long. Petals c. 3 mm long, usually not or hardly exceeding the sepals (very rarely suppressed). Stamens 6, rarely 4 (the outer 2 abortive ), c. 2: 2.5 mm long. Siliquae linear, compressed, 15-25 mm long, 1 mm broad, straight, glabrous ; valves smooth with a faint mid-vein; style almost absent to 0.5 mm long with a capitate stigma; septum not veined; seeds many, c. 1 mm long.
Fl. Per.: March-May.
Type: Described from Europe, Herb. Linn. no. 835/13 (LINN).
Fairly common in our northern hills, but seems to be under collected. Some forms may pass on to the previous species.