Scandent shrub to 5m with glabrous branchlets, small thorns. Glabrous leaves to 120mm x 50mm. Axillary inflorescence of 1-4 flowers, flowers to 40mm across with bracts to 5mm long, 4 sepals to 9mm x 6mm, 4 white petals to 30mm x 12mm. Fruit to 60mm x 30mm.