Plants 67-70 cm tall. Rhizomes long and creeping, 2-4 mm in diam., densely scaly at tip; scales brownish, ovate-lanceolate, 2.5-4 × 1-1.5 mm, basifixed, base broadly rounded, margin entire, apex acuminate; lumina isodiametric, brownish, transparent. Fronds 0.5-2 cm apart; stipe straw-colored to deep brown, 2-15 cm, 1.5-2 mm in diam., hard and smooth; base with 3 vascular bundles arranged in a triangle; lamina deep brown or gray-green on both surfaces when dried, lanceolate or linear-lanceolate, 20-65 × 1-3.2 cm, widest at or below middle, leathery or sometimes soft leathery, scales orbicular or lanceolate, lumina brown, base narrowly cuneate and decurrent, margin entire, apex obtuse or acuminate; costa raised on both sides, veinlets obscure. Sori closer to margin, orbicular or elliptic, 3-4 mm in diam.; paraphyses 0.35-0.5 mm in diam.
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