Climber with glabrous striate stems. Glabrous leaves to 80mm x 35mm. Terminal or axillary many-flowered racemes to 150mm long with btacts to 11mm x 2.5mm, flowers with 2 bracteoles 6mm long, 2 external sepals to 15mm x 12mm, internal sepals to 2.5mm x 1.5mm, corolla to 20mm long. Fruit to 10mm x 7mm, surmounted by persistent style, large wing to 50mm diameter, small wing to 20mm x 16mm, persistent sepals.