Lianas, stout, scrambling or sprawling over low vegetation or small trees. Branches usually glabrous; branchlets succulent when young, becoming woody, sometimes rooting at nodes; growing tips usually glabrous; tendrils unbranched. Leaves usually 3-foliolate, sometimes simple; petiole usually shorter than blade; blade succulent, broadly ovate to ovate-reniform, 2–8 × 2–7 cm, if simple usually 3-lobed, rarely unlobed, margins coarsely and irregularly toothed, surfaces glabrous; leaflets (compound leaves) ovate to oblong. Flowers greenish, greenish yellow, whitish, or purplish. Berries black to blue-black, 6–12 mm diam.
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