Solitary or clustering palm to 8 m tall; stem to 10 cm diam.; internodes moderate to elongate. Leaves to 2.5 m long, arching. Pinnae 10–30 each side of rachis, ascending to horizontal, to 40 cm long, dark green adaxially, lighter green abaxially. Inflorescence to 1.5 m long; peduncle to 40 cm long. Staminate flowers broadly bullet-shaped, to 9 mm long. Pistillate flowers to 5 mm high. Fruit to 18 mm long.