Liana or erect shrub, glabrous stems with small prickles. Trifoliolate leaves, doubly serrate, leaflets 100mm long puberulent above white tomentose beneath. Terminal few-flowered tomentose sparsely aculeate corymbs or solitary flowers with weak prickles, white flowers, tomentose or glabrate mucronate sepals to 6mm long, white petals. Tomentose fruit to 12mm long x 8mm.