Cayratia

Climbing, perennial herbs. Tendrils present, leaf-opposed. Leaves 3-foliolate or pedately 5-9-foliolate, petiolate, margins toothed; stipules present. Flowers unisexual or bisexual; in divaricately-branched axillary cymes; buds ovoid or depressed-globose, not constricted in middle. Calyx entire. Corolla yellowish green; petals 4, hooded at apex. Stamens 4; filaments short. Disc annular, thin, undulate. Ovary immersed in disc; style simple, subulate; stigma capitate. Fruit globose or depressed-globose, rather thinly fleshy. Seeds 2-4, usually with the two inner faces flat and the outer concave. x = 10 (12) (high polyploidy).