Plants 30-60 cm tall. Rhizome erect, densely covered with lanceolate blackish brown scales. Stipe stramineous, 16-32 cm, 2-3 mm in diam. at base, lower portion densely scaly; scales blackish brown or brown with a central blackish brown stripe, ovate or lanceolate, margins ciliate. Lamina oblong or oblong-lanceolate, 25-48 × 12-18 cm, base not contracted or slightly contracted, 1-imparipinnate, apex obtuse; rachis with sparse linear brown scales. Lateral pinnae 3-7 pairs, alternate, slightly ascendant, shortly stalked, deltoid-lanceolate, often falcate; middle pinnae 9-14 × 2.5-3.5 cm, base broadly cuneate or rounded-cuneate, acroscopic margins with long, acute auricles, margins serrulate, apex acuminate and often caudate; terminal pinna ovate or rhombic-ovate, forked or trifurcate, 10-16 × 8-11 cm; hard papery, abaxially with sparse lanceolate brown microscales, glabrous adaxially; venation pinnate, slightly raised abaxially, indistinct adaxially, veinlets anastomosing to form multiple rows of areoles on each side of midrib, each areole in proximal row with 1 included veinlet, each areole in other rows with 2 or 3 included veinlets. Sori throughout abaxial surface of pinnae; indusia white or light brown, margins toothed.
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