Liane or scandent shrub with white or brown flowers, fruit maturing red, stinging hairs, cauliflorous, flowers in lax axillary cymes, unisexual on different plants, male inflorescence paniculate to 65mm long, female flowers sessile to 1.5mm long, achene to 2mm long, semi-epiphytic. Dioecious tree or climber with adventitious roots, glabrous branches armed with spines bearing stinging hairs, glabrous leaves or with a few stinging hairs on nerves 150mm x 70mm, axillary inflorescences, male 70mm x 32mm armed with stinging hairs with green flowers, female 40mm x 25mm armed with stinging hairs, red fruit 2mm x 1mm. Tall climbing shrub with adventitious roots, unarmed glabrous stems, leaves with a few stinging hairs beneath 130mm x 100mm. Axillary inflorescences, male to 40mm long, female to 50mm long with tufts of stinging hairs, drupe to 2mm long