Vines to 20 m. Stems prostrate to erect, <climbing by adventitious roots>; young branches terete, not corky winged. Leaves persistent; petiole 5–10 mm; blade lanceolate, ovate, elliptic, to broadly obovate-elliptic, 1–9 × 0.5–5 cm, base cuneate, acute, obtuse, to rounded, margins crenate-serrate, apex obtuse, acute, or acuminate. Inflorescences axillary, 5–15-flowered. Flowers: sepals 4; petals 4, white to pale green, oblong, 3–4 × 2–3 mm; stamens 4; ovary smooth. Capsules straw colored to orange, globose, 6–8 mm diam., unlobed or very shallowly 4-lobed, lobes clearly connate, surface smooth. Seeds ellipsoid, 4–6 mm; aril orange. 2n = 32.