Erect or decumbent annual herbs, rarely perennials, usually glandular. Leaves petiolate, sinuate-dentate or pinnatifid, rarely entire. Inflorescence a raceme, flowers rarely solitary on long pedicles arising from basal rosettes. Sepals erect, dimorphic; petals clawed, purple, lavender or yellow, apex obtuse or emarginate; stamens 6. Fruit elongate (at least 3 times as long as broad), linear, terete, indehiscent, constricted between seeds and articulating at constriction; stigma bilobed; seeds in 1 row per locule, beak seedless.
11 species from Asia, Europe and the Middle East; 1 species naturalised in Australia.