Twiner with hairy stems. 3-foliolate leaves, leaflets to 8mm x 4mm. Solitary flowers, toothed pilose calyx 10mm long, purple corolla, standard 17mm x 11mm, claw 2mm long, wings 15mm x 4.5mm, keel 16mm x 3.5mm. Legume to 45mm x 4.5mm.