Twining vine with glabrescent stems. Imparipinnate leaves with 2-3 pairs of coriaceous leaflets, leaves to 200mm x 100,m, leaflets to 65mm x 32mm. Axillary or terminal panicles to 120mm long with bracts to 2.5mm long, calyx to 13mm x 5mm, bright orange-yellow corolla to 40mm long.