Rhizomes short, erect, apex with dense broadly lanceolate dark brown scales. Fronds caespitose; fertile fronds 25-65 cm; stipe stramineous, 25-30 cm, ca. 2 mm in diam., base densely scaly, upward glabrate; lamina pinnate-pinnatipartite to 2-pinnate, oblong, (15-)30-35 × (5-)15-17 cm at middle, base slightly narrowed, apex acuminate; pinnae 8-15 pairs, basal pinnae subopposite, upper pinnae alternate, ascending, shortly stalked (stalk 1-2 mm), lanceolate; lower pinnae 2-8 × 1.2-2 cm at base, base rounded-truncate, subequilateral, sometimes slightly auriculate on acroscopic side, pinnate, apex acuminate; pinnules ca. 12 pairs, basal pinnules subopposite, upper pinnules alternate, ascending, sessile, lower pinnules subrhomboid, 8-10 mm (basal acroscopic one larger, 1.2-1.5 cm, pinnatilobate), ca. 4 mm wide at base, base inequilateral, truncate on acroscopic side, narrowly cuneate and decurrent on basiscopic side, margin lobed, dentate, or serrate, apex ca. 2-crenate and obtuse; veins visible abaxially, pinnate in pinnules, lateral veins 7 pairs, oblique, lower veins 2-or 3-forked, upper veins simple. Lamina thinly herbaceous when dried, light greenish brown, glabrate; rachis and costae stramineous, glabrate abaxially, with subulate spines on adaxial side at base of costa or costule. Sori shortly linear or oblong, 3 or 4 pairs per pinnule, costular, biseriate on both sides of costule; indusia brownish, shortly linear or oblong, membranous, entire, persistent. Perispore surface without folds.
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