Tree to 15 m high. Leaves: petiole 4–6 mm long; lamina ovate, 8–30 cm long, 3–9 cm wide, rounded or obtuse, sometimes acute and asymmetrical at base, acuminate at apex, glossy above, glabrescent below; secondary veins mostly 9–11 pairs. Flowers solitary; peduncles persistent, up to 15 mm long; pedicel 4–6 mm long. Sepals depressed-ovate, 4 mm long, 5 mm wide, acuminate, densely pubescent. Outer petals obovate, 18–22 mm long, 13–15 mm wide, acute or obtuse, pubescent outside, nearly glabrous inside, cream. Inner petals puberulous outside; blade spade-shaped or hastate with incurved margins, 5 mm long, 7 mm wide, densely pilose and 3–5-channelled inside, mauve-pink on blade, fading to cream on claw; claw 9-10 mm long, 2.5–3.5 mm wide, sparsely pilose inside. Stamens 70–85, 1 mm long, 0.7 mm wide. Carpels 10–14; ovary 1.5 mm long; ovules 10; stigma granulate. Apocarps sessile, obovoid, 2–3 cm long, 1.2–2 cm wide. Seeds 1–8.