A large, woody, glabrous, dioecious liana up to 20m long. Stem up to 5cm indiameter, wood yellow, exuding yellow sap when cut. Leaves usually ovate,coriaceous palmately 5-veined at the base. Petioles swollen at both ends, stipulatesabsent.Inflorescence axilary or cauliflorous paniculate slender 10-50cm long, lateralbranches spicate to subspicate. Flowers unisexual with 3-4 outer sepals and 6 largeinner sepals petals absent, male flower subsessile with a sessile globose cluster of 9-12 anthers; female flowers with 3 carples and a number of staminodes. Fruits aslightly laterally compressed drupe transversely subovoid 2-3cm in diameter, yellowwith a club-shaped stalk, endocarp woody covered with a dense mat of radial fibres.Seeds broadly ellipsoidal with ruminate endosperm, cotyledons much folded.(Indonesia)