Large glabrous cauliflorous liana with 3 foliolate leaves, terminal leaflet to 120mm x 60mm. Cauliflorous many-flowered racemes to 200mm long of bluish-violet 75mm long flowers, calyx 6mm long, standard 30mm x 20mm, falcate wings with claw 8mm long, wings to 15mm x 6mm., upward curved keel 40mm x 20mm.