Plants 50-90 cm tall. Rhizome creeping, stout. Fronds approximate; stipe pale brown, 25-50 cm, longitudinally grooved, scaly; scales pale brown, broadly lanceolate to linear, up to 1.5 cm, membranous, remotely serrate, rachis throughout clothed with linear or acicular scales; lamina ovate-oblong or deltoid-ovate, 25-50 × 15-40 cm, tripinnatipartite, apex acuminate; pinnae alternate, lanceolate or oblong-lanceolate, shortly stalked, apex long acuminate, middle and lower pinnae longer, 11-27 × 2.5-6 cm, slightly narrowed toward base; pinnules approximate, basal basiscopic ones shortened, lanceolate or oblong-lanceolate, apex acute; segments oblong, 1-3 mm wide, often serrate at apex, sometimes also on margin. Lamina herbaceous to thinly papery, with acicular scales abaxially on costa and costule; veins pinnate, forked. Sori in 2 rows on each side of costa of pinnule; indusia orbicular-reniform, membranous, margin eroded.
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