Plants acaulescent; stem 8-20 cm diam.; 2-15 (-40) leaves in crown. Leaves 70-120 cm long, slightly keeled to flat in section, with 50-120 pinnae, dark green, highly glossy; petiole 25-50 cm long, 3-7 mm wide at lowest pinna; rachis not to moderately spirally twisted. Basal pinnae not reducing to spines. Median pinnae simple, 15-35 cm long, 7-11 mm wide, strongly discolorous; margins flat; apex entire, not spinescent. Pollen cones fusiform, 12-15 cm long, 3.5-4 cm diam.; microsporophyll lamina 8-12 mm long, 8-11 mm wide; apical spine 0-12 mm long. Seed cones ovoid, 15-20 cm long, 7.5-9 cm diam.; megasporophyll with an expanded, peltate apex 35-45 mm wide, and 20-25 mm long; apical spine 6-50 mm long. Seeds ovoid, 22-25 mm long, 18-20 mm wide; sarcotesta red.