A woody climber up to 27 m tall. Leaves ovate, 5—18 cm x 2.5—11 cm, base cordate, with two stalked glands, with 5 palmate nerves, apex acuminate, margin shallowly serrate with glands in teeth, lower surface with scattered stellate hairs, stipules caducous, (0.2—)1—1.5 cm long. Inflorescence with stellate hairs; staminate flowers with obovate petals, stamens 18—32, disk glands hairy; pistillate flowers with oblong petals, small, pilose, ovary with long stellate hairs. Fruit subglobose, 12—18 mm in diameter, finely 6-grooved, warty, stellate hairy. Seed with scattered stellate hairs.

Tonic (root)

PROSEA (Plant Resources of South-East Asia) Foundation
Medicinal Plants of Kadazandusun of Kuala Penyu, Sabah, Malaysia

Alleviates constipation, fever, and colds (decoction of roots); used to relieve stomach disorders (dried bark); applied as a poultice to sprains (leaves).