in botany, a genus of the decandria pentagynia clas. The calyx consists of one oblong smooth leaf, and the corolla of five unguiculated petals, with a bifid limbus; and the capsule has three cells. There are seven species, three of them natives of Britain, viz., the flos cuculi, meadow-pinks, or cuckowflower; the viscaria, or red German catchfly; and the dioica, or white campion.