Rhizome ascending, ca. 3 cm in diam. Fronds caespitose. Stipes dark brown below, stramineous above, 20-40 cm, densely scaly at base; scales shiny, brown, lanceolate, 1.5-2 cm × 1-1.5 mm, entire, acuminate or with bristle at apex. Lamina ovate-lanceolate or deltoid-ovate, 30-40 × 15-25 cm, bipinnate. Pinnae 10-15 pairs, lanceolate, 10-15 × 3-4 cm, lowest pairs shortened, upper pinnae becoming smaller. Pinnules 10-12 pairs, deltoid-ovate, 1-2 cm × 8-10 mm, broadest at base, sessile or subsessile, shallowly serrate, obtuse; lowest basiscopic pinnule on lowest pinnae usually shorter than next. Rachis, pinna rachis, and costa grooved adaxially. Veins pinnate, obscure abaxially. Lamina herbaceous, dark green. Rachis densely clothed with lanceolate, linear-lanceolate, and bullate scales; bullate scales on pinna rachis denser. Sori usually in 1 row on either side of costa, slightly closer to costa than to edge; indusium reniform, entire. n = 123.
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