Palm to 30 m tall; trunk to 25 cm diam. Leaves 7–10, to 2.5 m long, arching; leaf sheath elongate, light green with white to green tomentum, and black scales densely aggregated at apex and on base of petiole. Pinnae 38–48 each side of rachis, to 45 cm long, dark green adaxially, blue-grey abaxially. Inflorescence to 90 cm long; axes cream-green; bracts glaucous to grey-white; rachillae angled, semi-erect to pendulous. Staminate flower to 15 mm long; anthers pink to white. Pistillate flower to 15 mm long. Fruit to 50 mm long. Seed to 35 mm long, to 25 mm diam.