Plants 25-70 cm tall. Rhizome erect, densely covered with lanceolate brown scales. Stipe stramineous, 14-55 cm, 2-4 mm in diam. at base, lower portion scaly; scales brown, ovate or lanceolate, margins toothed. Lamina oblong or oblong-lanceolate, 18-44 × 10-16 cm, base slightly contracted or not contracted, 1-imparipinnate, apex obtuse; rachis covered with lanceolate or linear curved brown scales or glabrous. Lateral pinnae 3-6 pairs, alternate, slightly ascendant, shortly stalked, ovate, broadly lanceolate, or oblong-lanceolate; middle pinnae 7-15 × 2.5-4.5 cm, base broadly cuneate or rounded-cuneate, serrulate, acroscopic margins with weakly developed semicircular auricles, apex acuminate or slightly caudate; terminal pinna broadly obovate, obovate, or ovate, forked or trifurcate, 6-13 × 5-11 cm; hard papery or papery, glabrous on both surfaces; venation pinnate, slightly raised abaxially, indistinct adaxially, veinlets anastomosing to form multiple rows of areoles. Sori throughout abaxial surface of pinnae; indusia dark, margins entire.
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