Climbing palm with stems to 18.3m, spiny leaves to 1.8m with sheaths to 450mm long with spines, 900mm long tendrils on apex of leaf armed with spines, 16 leaflets per side 250mm x 30mm with spiny margins, spadix to 1.5mm dark brown & unarmed with branches to 250mm long, flowers sin fascicles, male flower with bracteoles