Twining liana or glabrous scandent shrub to 50m with striate branches. Glabrous mucronulate entire leaves to 170mm x 90mm. Pale green or yellow flowers in many-flowered axillary cymes or corymbs to 70mm long with 3 -7 divided tendrils to 25mm and triangular bracts and bracteoles to 1.5mm, up to 60 flowers in male, 3-5 flowers in female. Male flowers to 35mm x 4mm including 20mm long stipe, with minute bracteoles, leathery calyx tube to 14mm x 0.5mm, lobes to 2.5mm, 4 sepals 5mm long, 5 petals 4mm long, corona filaments to 5mm. Female flowers to 18mm x 3mm including 10mm long stipe, Calyx tube to 7mm, 1.5mm calyx lobes and 1.5mm petals. Woody coriaceous red fruit to 90mm x 35mm.
Roots and fruits poisonous
Medicinal uses for leaves & stems. Branches using for binding material underwater.