Climbing shrub or liana 0.5–40 m high; trunk 1–10 cm in diameter; bark brown, smooth, later longitudinally fissured; branchlets densely dark brown-pubescent. Leaves petiolate; blade elliptic to oblong-obovate, 3.5–14 cm long, 1.4–4.6 cm wide, sometimes ciliate with long hairs; domatia pale brown, sometimes absent; petiole 3.5–10(–13) mm long, rusty brown-pubescent, glabrescent, with glands at the base. Inflorescence rather lax, 2.5–15.5 cm long, 1.5–7(–9) cm wide; peduncle and branches rusty brown-pubescent, glabrescent; bracts ovate to triangular, inside with 1–3 colleters. Flowers fragrant; sepals triangular, 1–1.9 mm long, 0.3–1.2 mm wide, with 0–2 colleters per sepal; corolla in mature bud 4.8–11 mm long; tube white to greenish white, obconical, 2.5–4 mm long, inside with tufts of hairs 0.9–1.9 mm from the base; lobes white to greenish white, narrowly ovate to obovate, 2.3–7 mm long, 1–2.1 mm wide; stamens inserted at 0.2–0.4 mm from the base of the tube; penicellate hairs 0.4–0.5 mm long; pistil 2.5–3.1 mm long; style 0.2–0.7 mm long; ovules 25–40 in each carpel. Fruit dark green with dense rusty brown indumentum, and numerous wing-like ridges, 4–18 cm long, 1–3.5 cm in diameter; exocarp 1–2 mm thick; seeds numerous, 11–18.5 mm long, 5–8.5 mm wide; coma 29–78 mm long. Fig. 33 (p. 100).
