Plants 25-30 cm tall. Rhizome erect, densely covered with lanceolate brown scales. Stipe stramineous, 8-16 cm, 1-2 mm in diam. at base; lower portion densely scaly; scales brown, sometimes blackish brown at middle, lanceolate or narrowly lanceolate, margins fimbriate. Lamina oblong-lanceolate, 12-22 × 5-8 cm, base not contracted, 1-imparipinnate, apex acute; rachis with sparse linear brown scales. Lateral pinnae 3-5 pairs, alternate, spreading or slightly ascendant, shortly stalked, oblong or broadly ovate, 3.5-4.5 × 2-3 cm, base rounded-truncate, margins entire, apex rounded-obtuse; terminal pinna rhombic-ovate, 4-8 × 2-4 cm; leathery, glabrous on both surfaces, inequilateral at base; venation pinnate, veinlets anastomosing to form 3 rows of areoles on each side of midrib. Sori throughout abaxial surface of pinnae; indusia margins erose. 2n = 164*.
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