Trees 3-5 m tall, 40-50 cm in diam.; complete sheathing leaf base not seen, petiole 70-88 cm long; 4-7 cm wide at base, margins mostly armed with fairly short teeth on upper portion, coarsely spiny on lower part and adjacent sheathing base, spines 8-11 cm long; rachis of leaf 150-183 cm long; pinnae 63-80 on each side, regularly arranged, middle ones 60-75 cm long, 1.5-2.5 cm, with oblique, asymmetrical tips; expanded part of spathe 80-100 cm long, 7.0-8.5 cm wide, smooth or striate, more or less glaucous, becoming eglaucous with age; bran~hed part of spadix 85-94 cm long, rachIllae 50-60, 62-69 cm long; pistil. late flowers rounded or ovoid, 4-8 mm long, 4-6 mm in diam.; lower staminate flowers 7-10 mm long, those above 4-7 mm long; mature fruit orange, with soft mesocarp when ripe, ovoid, 1.8-2.6 cm long, 1.5-2.2 cm in diam., with short beak, persistent perianth 0.4-0.6 cm high, locules 1-3, seed ovoid or triangu. lar, 1.8-2.4 cm long, 1.0-1.4, cm in diam.