BotanyPlants; 20 to 40 cm tall.
Root: rhizomes; long creeping; 2 to 3 mm in diameter; densely scaly; scales caducous, basifixed, brown, ovate or acuminately ovate, 2 to 3 mm long, 1 to 2 mm wide; margin entire, apex obtuse; central lumina subrectangular; luminal walls thickened, dark colored, marginal lumina polygonal, colored.
Leaves: 0.5 to 2 cm apart; stipe mostly straw-colored; 3 to 16 cm long, 1 to 2 mm in diameter; lamina abaxially gray-green or brownish, adaxially yellowish green or brown, lanceolate or narrowly lanceolate, 20 to 40 cm long, 1 to 5 cm wide; widest at middle, thickly leathery, with small sparse scales, base cuneate, decurrent, margin straight or slightly undulate, apex shortly acuminate; costa raised on both sides, veinlets normally obscure.
Sori: marginal or submarginal; orbicular or elliptic; much raised on abaxial surface of lamina; depressed on adaxial surface of lamina; paraphyses brown, orbicular, 0.5 to 0.8 mm in diameter, margin entire.