Glabrous annual. Leaves exstipulate. Petals 5, pink or purple, long-clawed with entire apex; Stamens 10. Ovary unilocular, except at the base where it is 2-locular; Capsule ovoid to spherical, pericarp consisting of a thick papery exocarp, dehiscing with 4 teeth, and a thin endocarp, dehiscing irregularly. Seeds numerous, reniform or globose.
from the Mediterranean region to temperate Asia present
Few species from the Mediterranean region to temperate Asia; elsewhere occasionally as a weed.