Climber. Paired leaves with a trifid tendril, leaflets to 150mm x 120mm, mostly glabrous. 3-flowered racemose panicles to 250mm long with 25-28 flowers with bracteoles to 5mm long, calyx to 13mm x 15mm, white to cream or yellow-throated corolla to 56mm long with tube to 45mm long widening to 19mm at mouth, lobes to 12mm x 15mm. Capsule to 280mm x 55mm.