Climbing palm to 5m+. Stem sheaths armed with black spines to 15mm. Flagellum to 2m, leaf to 900mm, 15-30 leaflets per side, longest to 300mm x 20mm armed with marginal spines. Inflorescence to 3m long, male rachillae to 20mm long, female rachillae to 40mm x 2mm. Beaked fruit 5mm diameter.