Rhizomes short, erect, apex densely scaly; scales dark brown, linear-lanceolate, fibriform-tipped. Fronds caespitose; fertile fronds 35-45 cm; stipe blackish brown, upward stramineous, 15-18 cm, 2.5-3 mm in diam. at base, base similarly densely scaly, clothed with brownish short glandular hairs in distal part; lamina 2-pinnate, narrowly subtriangular, 25-30 × 15-20 cm, base not narrowed, apex acuminate; pinnae 13-16 pairs, lower pinnae subopposite, upper pinnae alternate, subspreading, sessile, basal pinnae slightly shortened, frequently reflexed, narrowed at base; lower pinnae lanceolate, ca. 10 × 2.5-3 cm, base equilateral, truncate, apex long acuminate; upper pinnae falcate-lanceolate, gradually shortened upward, base slightly unequally sided, auriculate, cuneate and slightly decurrent on basiscopic side, pinnate, apex acuminate; pinnules 12-16 pairs, basal pinnules opposite, larger and alongside rachis; upper pinnules alternate, approximate, subspreading; basal 2 or 3 pairs of pinnules deltoid-oblong, 1-1.3 cm × 5-7 mm, base unequally sided, subtruncate, prominently auriculate on acroscopic side, cuneate and slightly decurrent on basiscopic side, margin crenate, apex acute; veins inconspicuous adaxially, visible abaxially, pinnate in pinnules, lateral veins ca. 7 pairs, lower veins forked, upper veins simple, basal acroscopic veins often pinnate. Lamina papery when dried, pale greenish brown, glabrate; rachis and costae stramineous, with dense brownish short glandular hairs on adaxial surface, with subulate spines on adaxial side at base of costa or costule. Sori oblong or shortly linear, 3-6 pairs per pinnule, biseriate on both sides of costules, inframedial; indusia brown, oblong or shortly linear, membranous, entire, persistent. Perispore surface without folds, reticulate. 2n = 80*.
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