Rhizome 4-5 mm in diam., densely scaly throughout; scales brown at center, paler toward margin, lanceolate, ca. 5 mm, margin and sometimes surface ciliate, apex acuminate. Fronds monomorphic. Stipe straw-colored or light brown, usually 10-20 cm, densely scaly at base, glabrous upward; lamina trifid or pinnatifid, incised up to 5-15 mm from costa, 20-30 × 10-20 cm, base broadly cuneate, margin entire or undulate. Lateral lobes (1 or)2-5(-8) pairs, ascending, deltoid or broadly lanceolate, 10-15 × 1.5-5 cm, base sometimes slightly contracted, apex acuminate. Costa and lateral veins raised on both surfaces. Lamina papery, both surfaces glabrous. Sori orbicular, large, slightly closer to costa.
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