Climbing palm to 20m. Coriaceous leaf sheaths with spines, leaves to 2.3m long with 23-47 pinnae per side, central pinna to 545mm x 35mm. Inflorescence with bracts, staminate inflorescence to 600mm long with rachillae to 210mm long, pistillate inflorescence with rachillae to 77mm long. Yellow-brown fruit to 14.7mm x 12mm.