Perennial climbing herb or lianescent subshrub to 4m with pubescent stems. 8-18 pairs of leaflets, terminal leaflets to 7mm long. Terminal pseudoracemes to 160mm long with bracts & bracteoles to 4mm, of 4-8 flowers, calyx 3mm long, white to violet corolla to 13mm, standard 13mm x 7mm, claw to 1.5mm, wings to 12mm x 2.7mm, keel to 13mm x 3.2mm.