Plants 10-20 cm tall. Rhizomes creeping, to 10 cm, 2-3 mm in diam., densely scaly; scales brown, sometimes with paler margins, lanceolate, 2.5-5 × up to 1 mm, very thick in center, margins serrate, central lumina opaque, marginal 1 or 2 rows of lumina brownish, transparent. Fronds 1-1.5 cm apart; stipe straw-colored, to 1(-3) cm, robust, 1-1.5 mm in diam.; lamina yellowish green, lanceolate to ovate-lanceolate, 8-18 × 1.5-3.5 cm, widest 1/3-1/2 from base, softly leathery when dried, abaxially densely scaly, scales deep brown, lanceolate, 1-2 × 0.4-0.5 mm, lumina usually transparent, adaxially glabrous, base cuneate, decurrent, apex acuminate; costa robust, raised on both sides, veinlets obscure. Sori on distal half of lamina, slightly closer to costa, orbicular or elliptic, up to 4-5 mm in diam., sterile at ends, contiguous; paraphyses deep brown, orbicular, 0.4-0.6 mm in diam. center thick and dark. Spores tuberculate.
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