Large solitary fan-leafed palm to 30m tall, 25�30cm diameter. Crown roundish, with 15�30 leaves. Petiole 1�2m long, with striking yellow and green longitudinal strips and large spines along the margin; blade 1.5�1.8m across, nearly circular, irregularly segmented in groups. Inflorescence much branched, to c. 1.2m long bearing small yellow blossoms. Fruits globose, surface smooth, c. 4.5�5cm across, green turning brown.