Tree 6–18(–33) m. tall, with pale grey bark; young twigs minutely pubescent, later glabrous, dark-coloured and striate. Leaf-blades ovate-oblong or elliptic-oblong, 10–21 cm. long, 4–10 cm. wide, often obliquely acuminate at the apex, broadly cuneate, rounded or truncate at the base, somewhat pubescent on the midrib and nerves; venation prominent. Flowers drooping in 2–6-flowered racemes, very sweetly scented. Petals green at first, then pale yellow, with a purple-brown spot at the base inside, linear-lanceolate, (2.5–)5–7.5(–8.7) cm. long, 5–7(–14) mm. wide, minutely pubescent. Monocarps 10–16, ellipsoid or oblong-obovoid, 1.5–2.3 cm. long, glabrous. Seeds pale brown, oblong-elliptic in outline, flattened, 9 mm. long, 6 mm. wide, 2.5 mm. thick, with rugose or pitted faces. Fig. 15, p. 65.