A dioecious, small to medium-sized tree, 10-20(-30) m tall, outer bark lenticellate, greyish-black, inner bark brown. Leaves ovate-lanceolate to ovate-oblong, 10-33 cm x 3-7 cm, coriaceous, glabrous, base cuneate to rounded-obtuse, usually asymmetrical, apex gradually long attenuate. Inflorescence a 2-3-branched cyme, few-flowered; flowers 5-merous, white or greenish, scented, female flowers with 5 fusiform staminodes. Fruit globose, 8-12 cm in diameter, brownish tomentulose, exocarp 0.2 mm thick, mesocarp yellowish, very hard. Seeds 30-50(-100) per fruit, ovoid, compressed, 1.5-1.8 cm x 1-1.5 cm.

Used as a vermifuge (seeds)

PROSEA (Plant Resources of South-East Asia) Foundation

Used in the treatment of leprosy and other skin complaints (seed oil).