Plants acaulescent; stem 15-35 cm diam.; 2-12 leaves in crown. Leaves 70-140 cm long, moderately keeled, with 55-120 pinnae, mid-to dark green, semi-glossy to highly glossy; petiole 15-40 cm long, 8-10 mm wide at lowest pinna; rachis strongly spirally twisted. Basal pinnae not reducing to spines. Median pinnae simple, 20-60 cm long, 5-9 mm wide, strongly discolorous; margins incurved; apex entire, not spinescent. Pollen cones fusiform, 15-27 cm long, 4.5-6.5 cm diam.; microsporophyll lamina 16-22 mm long, 15-20 mm wide; apical spine 0-13 mm long. Seed cones ovoid, 12-18 cm long, 8-10 cm diam.; megasporophyll with an expanded, peltate apex 17-27 mm wide and 10-15 mm long; apical spine 0-20 mm long. Seeds ovoid, 23-27 mm long, 19-23 mm wide; sarcotesta red.
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