Annual herb with a long tap root and a ± prostrate or ascending stem up to c.40 cm. Lower leaves 2-11 cm, pinnate or pinnatifid; the lobes oblong or more rarely toothed; upper leaves sessile and entire. Petals 11 x 4 mm, white, lavender or rose. Fruiting pedicels thick, 2-5 mm, erect-spreading. Fruit 20-25 mm, glabrous, of 2 unequal, 1-seeded members, rarely the basal member 2-seeded; each member indehiscent; the upper oblong-ovate, c. 15 mm, the lower turbinate, c. 5 mm, often with 2 lateral horns, hastate at joint. Fl. 6-8. Sandy and shingly shores.
Coasts of Europe, N. Africa, S.W. Asia.