Details
Stems to 15 m tall, 20-30 cm in diam., rough with leaf scars. Leaves palmate; petioles to 1.8 m, with green or black, recurved spines along margins, spines denser proximally, fewer distally on petioles; hastula to 3 cm; blades almost circular in outline, 1.2-1.8 m wide, green on both surfaces, regularly divided to ca. 1/2 their length into 50-90 segments, these split and pendulous at apices. Inflorescences 1-1.2 m, branched to 3 orders, with 6 or 7 partial inflorescences; rachillae 10-18 cm; flowers hermaphroditic, borne in clusters of 4-7, white or yellow, 2-2.5 mm. Fruits green or blue-green, globose to ellipsoid or pear-shaped, 1.5-2.6 × 0.9-1.8 cm.