Plants 60-80 cm tall. Rhizome erect, short, densely scaly; scales bright rufous-brown, oblong-lanceolate, margin spinulose, apex acicular, usually twisted. Fronds caespitose; stipe stramineous, 1/4-1/3 as long as lamina, clothed with oblong-lanceolate, brown or dark brown scales at base, these smaller distally, lanceolate, sparsely spinulose; lamina narrowly oblong-lanceolate, 40-60 × 15-25 cm, bipinnate, not narrowed toward base, apex acuminate; pinnae to 20 pairs, lanceolate, 7-10 × ca. 2 cm, base truncate, sessile, apex acuminate; pinnules 8-10 pairs, opposite or subalternate, oblong, margin incised-dentate, slightly raised on both sides at base, apex obtuse. Lamina papery; pinna rachis clothed with lanceolate, brown scales; veins mostly forked, obscure adaxially, conspicuous abaxially; upper 1/3-1/2 of lamina fertile. Sori between costa and margin, 3 or 4 pairs on each pinnule; indusia orbicular-reniform, strombuliform, not completely covering sorus at maturity.
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