Climber with lenticellate stems. 2-foliolate puberulous leaves, leaflets to 234mm x 128mm. Lilac flowers in terminal many-flowered thyrses to 255mm long with bracts to 2.1mm x 0.6mm, 5-toothed calyx to 5.9mm x 6.4mm with teeth to 1.4mm, corolla purple outside, tube to 52.5mm x 3.3mm & lobes to 22mm x 15.5mm. Inflated woody fruit to 145mm x 40mm with spines to 13.4mm.