Plants acaulescent, rarely caulescent; stem 0-0.4 m tall, 20-40 cm diam.; 12-40 leaves in crown. Leaves 70-150 cm long, flat (not keeled) in section, with 75-120 pinnae, pale to mid-green, semi-glossy; petiole 13-30 cm long, 8-20 mm wide at lowest pinna. Basal pinnae reducing to spines. Median pinnae simple, 16-32 cm long, 5-9 mm wide, strongly discolorous; margins flat; apex entire, spinescent. Pollen cones fusiform, 25-33 cm long, 6.5-7.5 cm diam.; microsporophyll lamina 28-33 mm long, 17-22 mm wide; apical spine 2-25 mm long. Seed cones ovoid, 16-23 cm long, 9-12 cm diam.; megasporophyll with an expanded, peltate apex 40-65 mm wide and 15-25 mm long; apical spine 5-70 mm long. Seeds ovoid, 24-30 mm long, 20-26 mm wide; sarcotesta red.
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