Plants 35-60 cm tall. Rhizome erect, short, densely scaly; scales brownish black, lanceolate. Fronds caespitose; stipe dark stramineous, 7-20 cm, densely clothed with black, linear-lanceolate scales; lamina lanceolate, 28-40 × 10-15 cm, once pinnate, not gradually narrowed to base, apex abruptly caudate-acuminate; pinnae 18-20 pairs, lanceolate, 5-8 × 1-1.2 cm, base rounded, shortly stalked, apex acuminate; segments obliquely oblong, apex with 2 or 3 sharp teeth, basal segments nearly free. Lamina herbaceous; rachis densely clothed with linear, black scales; rachis and veins sparsely clothed with black, fimbriate scales abaxially; veins pinnate, 3-5 pairs on each ultimate segment, simple, acroscopic basal vein extending below sinus, others extending to margin. Sori abaxial on veinlets, in 2 irregular rows on both sides of costa; indusia brown, reniform, papery, persistent.
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