Liana 3–40 m high, rarely sarmentose shrub 0.9–7 m high with copious white latex; stems deeply fluted, to 22 cm in diameter, dark brown; branchlets glabrous or pilose. Leaves petiolate, blade elliptic to ovate or obovate, 1.9–14.5 cm long, 0.8–6 cm wide, obtuse to bluntly acuminate at the apex with acumen up to 1 cm long, rounded to cuneate at the base, sometimes slightly ciliate, glabrous above, lower surface completely glabrous or pubescent at the base of midrib and lower secondary veins; petiole 1.5–8 mm long, glabrous or pilose, with 4–8 triangular glands on each node, often with empty bracts in between nodes. Inflorescence terminal, sometimes also axillary, 1.6–5.5 cm long, 2–20-flowered; peduncle 5–33 mm long, sometimes tendril-like, elongate and curved; bracts ovate to triangular, 1–2.5 cm long; pedicels 1.2–6.5 mm long. Flowers fragrant; sepals ovate, 1.2–3.1 mm long, rounded at the apex; corolla white, creamy or yellow; tube often greenish, occasionally tinged pink or reddish, 6–12 mm long; lobes narrowly ovate to elliptic, 5.3–15.5 mm long, 1.9–4 mm wide, glabrous, rounded; stamens inserted 1.8–3.6 mm from the base of the tube, included for 1.3–5.9 mm; ovary ovoid, glabrous or with a few hairs. Fruits green with white or light brown verrucose spots, 1–50 mm in diameter, globose or pyriform, 2.5–6 cm long, 2–20-seeded; pericarp 5–6.5 mm thick; pulp fleshy, white, turning yellow when exposed; seed up to 17 mm long, irregularly ovoid, laterally compressed, minutely pitted.