Robust climbing rattan to 20m. Hairy leaves to 1.7m long armed with triangular spines to 10mm x 2mm., 32-35 leaflets per side, longest leaflets to 600mm x 35mm. Staminate inflorescence with bracts to 320mm x 130mm, rachillae to 43mm x 6mm, rachillae with bracts 2.5mm x 5mm.