Rhizome pale green, 10-20 mm in diam., sparsely scaly; scales dark brown at center, paler toward margin, orbicular, peltate, clathrate, entire. Stipe straw-colored, 30-50 cm, glabrous except for scaly base. Lamina imparipinnate, 30-50 × 20-25 cm; rachis terete; lateral pinnae 8-15 pairs, ± ascending, linear-lanceolate, 15-20(-25) × 2-3.5 cm, herbaceous or leathery, both surfaces glabrous; base cuneate with 5-10 mm stalk, margin entire, apex acuminate to attenuate; midrib raised on both surfaces, straw-colored; veinlets obscure. Sori orbicular, in 1 row on each side of costa, medial, nearly superficial. Spore surface with minute spheres.
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