Liana with tetragonal winged branches, wings to 2mm wide. 3-foliolate glabrous leaves, leaflets to 170mm x 95mm. Axillary cymes to 210mm long, flower bractlets to 2.5mm long, calyx 2mm long, corolla tube 3mm long, 5-lobed limb, anterior lobe 2.5mm x 2.5mm. Fruit 7mm x 8mm.