A dioecious, more rarely andromonoecious, medium-sized tree, up to 40 m tall, with a dense crown and drooping branches; trunk up to 1 m in diameter, buttresses present. Leaves spirally arranged, simple, ovate-cordate, (10—)12—30(—60) cm x 8—20(—40) cm, entire, 5—7-veined from the base, dark green, glabrous, shining above, dull beneath; petiole 7—30(—50) cm long; stipules absent. Flowers usually unisexual, but the terminal flowers of the male inflorescence sometimes bisexual, rather fragrant; male flowers in few-flowered pseudo-racemes, 6—24 cm long, including 5—12 cm long peduncle, pedicel 2.5—4 cm long, female flowers mostly solitary in the axils of the upper leaves, pedicel 6—9(—12) cm long; calyx closed before anthesis, nearly globose, disrupted irregularly in 2—3(—4) segments, lobes reflexed about 1(—2) cm long, petals (4—)5—8(—9), imbricate, ovate-oblong, 1.5—2.5 cm, somewhat fleshy, bright pale green; male flowers with 20—25(—31) stamens, 0.8—1.3 cm long, free; female flower with as many staminodes as petals and alternating with them, rarely 20—25, ovary superior, ovoid, sessile, with 2—4 many-ovuled placentas, stigma sessile. Fruit an indehiscent, asymmetrical oblong to ovoid drupe, 15—25(—30) cm x 7.5—12(—15) cm, bluntly to distinctly sharp tipped at both ends, brownish, rather scurfy and rough, hanging from a curved stalk, containing about (13—)20(—40) irregularly shaped closely packed, interlocked seeds, pericarp coriaceous, 0.5—1 cm thick, becoming soft an mushy in the ripe fruit. Seed almost triangular, (3—)4—6 cm x 2—3(—4) cm, enclosed by a white oily and fleshy, sweet, aromatic, edible aril, greyish white when fresh, blackish when weathered, leathery.

Anthelmintic and narcotic (whole plant)

PROSEA (Plant Resources of South-East Asia) Foundation

The fruit is sliced and the juice applied to sores and cuts.