Annual, rarely biennial herbs, erect to spreading, usually hairy (often scabrous or strigose) with simple and branched hairs, rarely glabrous. Leaves oblanceolate or elliptic, deeply pinnatifid to almost entire, stalked to sessile. Racemes often lax. Flowers small to large, white, pinkish to violaceous; pedicels often short and thickened in fruit, spreading or ascending. Sepals erect, inner usually saccate at base. Petals slightly to c. 4 times as long as the sepals, linear to oblanceolate. Stamens 6; filaments not appendaged; anthers oblong, obtuse. Lateral nectar glands in pairs, pyramidate; middle absent. Ovary linear or oblong-linear, many ovuled; stigma conical, bilobed with decurrent lobes, subsessile. Siliquae linear, ± terete or subcylindrical, bilocular, dehiscent (often tardily); valves somewhat rigid, pilose to glabrous, with a distinct mid-rib; septum submembranous, not veined; seeds 1-2-seriate, oblong, not winged.