Twining shrub to 13m with glabrous branches & leaves, peltate unifoliate leaves to 80mm x 35mm. Red, pink or red-purple flowers to 25mm long in racemes, calyx to 22mm long with 2 lobes, standard to 35mm x 12m, 4 claw petals to 12mm long, wing petals to 20mm x 2mm, keel petals to 25mm x 2.5mm. Pubescent legume.