Rhizomes creeping, ascending or suberect at apex. Fronds subcaespitose; fertile fronds 1.2-2 m; stipe upward pale brown-stramineous, (35-)40-95 cm, up to 1 cm in diam. at base, base with sparse dark brown subulate lanceolate scales, upper part glabrate; lamina 3(or 4)-pinnatipartite, broadly ovate, (50-)80-105 × (30-)60-85 cm at middle, base narrowed and rounded-cuneate, apex acuminate; pinnae (10-)12-15 pairs, alternate, stalked, slightly ascending, oblong-lanceolate, basal pinnae up to 40 × ca. 15 cm at middle, base equilateral, truncate, apex acuminate; pinnules 14-16(-18) pairs, alternate, sessile or stalked, spreading, broadly lanceolate to oblong, (5-)6-10 × 1.5-2 cm, base equilateral, truncate, pinnatipartite, apex acuminate; segments ca. 12 pairs, basal segments usually shortened, suboblong, (6-)7-20 × 2.5-3.5(-7) mm, crenate-serrate or entire, obtuse-rounded. Veins pinnate in segment, lateral veins simple or forked. Lamina herbaceous when dried, yellow-green, with sparse short pale hairs adaxially, rachis, costae, and costules with sparse brown lanceolate small scales and scalelike vermiculate hairs. Sori small, orbicular, abaxial, medial or subcostular; indusia brown, orbicular-reniform, membranous, subentire or irregularly toothed, frequently abortive or fugacious. Perispore with strialike folds. 2n = 80.
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A fern. It is like a herb. The stalks are scaly at the base. The fronds are 35 cm long. They are divided into leaflets (pinnae) along the stalk. These are deeply divided. The spore bodies are round and in rows on either side of the small veins.
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