Solitary fan-leafed palm to 40 m tall, 15-65 cm diameter. Crown roundish, with 15-30 leaves. Petiole 1-2 m long with spines along the margin; blade 1.5-1.7 m across, nearly circular, irregularly segmented in groups with pendulous tips. Inflorescence much branched, to c. 2.6 m long bearing small yellow blossoms. Fruits globose to ellipsoid, 10-18 mm across, blue to purple when mature.