Climbing palm to 15m+. Leaf sheaths with spines to 1m. Leaf to 1.25m with cirrus 400mm long armed with spines to 80mm long, 3-7 leaflets per side, leaflets to 210mm x 80mm with prickly margins. Inflorescence to 200mm long, staminate flowers to 5.5mm x 2.5mm with calyx to 0.6mm long & corolla to 5.5mm x 2.5mm. Pistillate flowers to 4.5mm x 3mm, calyx 1mm long, corolla split into 3 lobes 3mm wide. Orange-chestnut brown fruit to 20mm x 20mm.