A liana up to 35 m long, with stem up to 5 cm in diameter, bark densely and finely lenticellate, brown or grey, tendrils simple. Leaves ovate or elliptical to lanceolate, 4-18(-22) cm x 2-9(-12) cm, petiole 5-10 mm long. Inflorescence axillary, 10-20-flowered; corolla 7-17 mm long, tube about 3 times longer than lobes, with some long woolly hairs inside in the lower half. Fruit globose, 4-12 cm in diameter, about 10-seeded. Seeds lenticular to ellipsoid or orbicular, 20-35 mm x 16-20 mm x 8-9 mm, silky to felty, or irregularly shaped like castor beans, about 20 mm x 10 mm x 10 mm and rough but glabrous.

Stomachic, febrifuge, anticholeric and tonic (seeds and bark); stomachic and febrifuge (seeds, roots and wood); tonic and vermifuge (seeds).

PROSEA (Plant Resources of South-East Asia) Foundation

Used to treat malaria (seeds, roots and wood); to obstinate vomiting, to treat cholera, asthma, dropsy and rheumatism (seeds); to treat stomach-ache (seeds and bark); in diabetes (leaves).