Slender twining herb with 3-foliolate mostly glabrous leaves, leaflets to 35mm x 30mm. Axillary inflorescence to 200mm long with bracteoles to 1.5mm x 0.8mm, green calyx with reddish marks, calyx tube 3mm long with lobes 1mm long, violet & cream corolla to 9mm diameter, wings to 10mm x 3mm, bent keel to 4.2mm wide, claw to 2mm long.