Climber to 10m. Leaf sheaths with spines to 7mm long. Flagellum to 3m long. Armed leaf to 1m long, 50 leaflets each side, longest to 300mm x 14mm armed with brsitles. Pistillate inflorescence to 4m long with rachillae to 350mm x 2.5mm & bracts to 12mm x 20mm, flowers to 3.5mm x 1.5mm. beaked fruit to 15mm x 7mm.