Lianas, moderately high climbing. Branchlets green, glabrous. Leaves simple; petiole ± equaling blade; blade ovate, 5–12 × 4–9 cm, usually unlobed, sometimes shallowly 3-shouldered, base truncate to subcordate, margins coarsely and irregularly serrate, apex acute to acuminate, surfaces glabrous or abaxial surface sparsely puberulent. Inflorescences ± equaling to longer than leaves. Flowers yellowish green. Berries ripening from green to orange, rose, purple and finally blue, subglobose, 6–10 mm diam. 2n = 40.