Rhizomes shortly creeping, sparsely scaly; scales appressed or nearly so, reddish brown, 2-4(-6) cells wide at base, acicular at apex. Fronds approximate; stipe castaneous, (10-) 20-30 cm, quadrangular or sometimes not distinctly so; lamina oblong-subtriangular, 10-18 × 5-16 cm, herbaceous, 3-or 4-pinnate, finely dissected, rounded or truncate at base, confluent apically; pinnae 15-18 pairs, subopposite at base, alternate apically, deltoid-lanceolate to lanceolate, usually sessile, 2-or 3-pinnate, cuneate at basiscopic base and truncate at acroscopic base, apex acuminate; ultimate pinnules linear; veins free, 1(or 2) in each lobe, visible. Sori marginal, terminal on 1(or 2) veins; indusia suborbicular, reniform, or oblong. 2n = ca. 178*.
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