Plants acaulescent; stem 10-25 cm diam.; 2-7 leaves in crown. Leaves 50-100 cm long, moderately to strongly keeled, with 70-110 pinnae, mid-green, semi-glossy; petiole 12-22 cm long, 7-10 mm wide at lowest pinna; rachis not to moderately spirally twisted. Basal pinnae not reducing to spines. Median pinnae simple, occasionally dichotomously branched, 12-26 cm long, 5-9 mm wide (ultimate segments 3-5 mm wide), concolorous or weakly discolorous; margins flat to slightly recurved; apex entire, not spinescent. Pollen cones fusiform, 16-25 cm long, 4.5-5.5 cm diam.; microsporophyll lamina 16-24 mm long, 13-19 mm wide; apical spine 2-15 mm long. Seed cones ovoid, 13-20 cm long, 7-9 cm diam.; megasporophyll with an expanded, peltate apex 45-50 mm wide and 15-20 mm long; apical spine 2-30 mm long. Seeds ovoid, 26-30 mm long, 22-25 mm wide; sarcotesta red.
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