Perennial climbing shrub or liana with glabrescent twigs. 5-9 leaflets, terminal leaflet to 125mm x 50mm. Axillary or terminal pseudoracemes to 280mm long with bracts to 1.5mm x 1mm, pubescent flowers with subtending bracts to 0.7mm x 0.5mm & bracteoles to 0.8mm x 0.5mm, reddish-brown to purplish calyx to 4mm high, tube to 3mm & lobes to 2mm x 5mm, white or pale green corolla with claw to 4mm long, standard to 8mm x 9mm, wings to 8.5mm x 2.5mm & keel to 6.5mm x 2.5mm. Leathery winged pod to 65mm x 30mm with wings to 9mm wide.