Erect, prostrate or climbing perennial herbs or shrubs. Tendrils opposite the leaves or 0. Stipules present. Leaves digitately 3-9-foliolate, rarely simple and entire or lobed. Inflorescences of leaf-opposed or axillary corymbose cymes. Flowers 4-merous. Fl. bud cylindric to flask-shaped, constricted at or near the middle. Petals hooded at the apex, becoming reflexed after flowering. Disk divided into 4 ± fleshy glands. Style simple. Fruit usually with 1 seed.