Cissus

Erect or semiscandent shrubs or climbers. Tendrils leaf-opposed or 0. Leaves simple or sometimes deeply lobed or digitately 3-7-foliolate, margins variously toothed, rarely entire; stipules present. Flowers in leaf-opposed or terminal, rarely axillary cymes with flowers in umbels on ultimate branchlets; buds conical to ovoid. Calyx entire or 4-lobed. Corolla dull yellow or yellow; petals 4, hooded at apex. Disc +/- adnate to ovary, thick, annular, entire or lobed. Stamens 4; filaments short. Style simple, subulate; stigma subcapitate. Fruit globose, ellipsoid or ovoid. Seed usually 1, oblong, ovoid or subspherical, often abruptly narrowed at one end and sometimes with a dorsal crest. x = 12 (10, 11, 13, 14) (high polyploidy).