Clustering climbing rattan palm, scandent stems to 30m. Stem sheaths armed with spines to 22mm x 5mm. Flagellum to 2m long. Leaf sheaths with triangular spines to 20mm long, at mouth to 40mm long. Leaves to 1.5m long with small spines beneath & on margins, leaflets to 450mm x 25mm bristly on nerves & apex, 40 leaflets per side. Female spadix to 2m long with primary branches to 600mm long, female rachillae to 80mm long, female flowers 4mm long.