Biennial to perennial taprooted herbs. Hairs simple, branched and/or glandular. Stems erect, leafy. Lvs simple, toothed or pinnatifid. Racemes ebracteate, sometimes bracteate below. Sepals erect, the inner saccate. Petals yellow, purple, pink or white. Stamens 6; filaments of inner 4 slightly winged. Lateral nectaries 4, ± joined inside bases of lateral stamens; median nectaries 0. Style short; stigma deeply 2-lobed, with lobes erect, not appendaged at back. Silique linear-cylindric or somewhat 4-angled, dehiscent; valves with distinct median and lateral veins; beak 0. Seeds oblong, not winged, in 1 row per locule.