Climbing clustering rattan. Leaf sheaths covered in spines to 30mm long, spiny leaves to 3m long with cirrus to 800mm long with grapnel-like spines. 30 leaflets each side to 300mm x 20mm armed with bristles. Female pendulous inflorescence to 370mm x 150mm armed distally with groups of spines to 20mm, female flowers 6mm long. Young fruits 16mm x 11mm covered in encrusted scales.