Annual with few or many, erect or ascending, rarely prostrate stems up to 35 cm. Indumentum of adpressed few-rayed stellate hairs. Leaves obovate to linear-oblanceolate. Inflorescence rarely branched, up to 15 cm. Petals obovate, 2-3 mm, usually glabrous, often scarcely exceeding the sepals and persistent with them. Fruits orbicular, emarginate or truncate 3-4 mm; valves equally inflated, with compressed margins and an indumentum of small, adpressed stellate hairs. Styles 0.3-0.6 mm, usually glabrous. Seeds narrowly winged. Fl. 3-8. Disturbed habitats, s.l.-2000 m.
Europe, N. Africa.