Rhizomes short, erect, apex densely scaly; scales dark brown, linear-lanceolate, fibriform-tipped. Fronds caespitose; fertile fronds 50-60 cm; stipe blackish brown, upward stramineous, 25-30 cm, ca. 3 mm in diam. at base, base similarly densely scaly, stipe and rachis with dense brownish short glandular hairs; lamina 2-pinnate, ovate-oblong, 30-35 × up to 25 cm, base narrowed, apex shortly acuminate; pinnae 18-20 pairs, lower pinnae opposite, reflexed, upper pinnae alternate, spreading, basal 2 pairs of pinnae slightly shortened, slightly narrowed at base; middle pinnae linear-lanceolate, 14-16 × 2-2.5 cm at middle, base subequilateral, truncate, pinnate, apex long acuminate or caudate; pinnules 18-20 pairs, basal pinnules opposite, upper pinnules alternate, spreading, sessile, basal pinnules larger, ± pinnatilobate, overlaying rachis; pinnules other than basal pinnules oblong-triangular, up to 1.2 cm × ca. 4 mm at middle, base inequilateral, truncate and auriculate on acroscopic side, auricles long, narrowly cuneate on basiscopic side, with 2 or 3 shallow segments or duplicate teeth, apex shortly acuminate; veins inconspicuous adaxially, visible and protuberant abaxially, pinnate in pinnules, lateral veins 5 or 6 pairs, oblique, lower veins forked, upper veins simple, pinnate in auriculate lobes. Lamina firmly papery, brown-green, glabrate on both surfaces; costae abaxially brown-stramineous, with dense brownish short glandular hairs, with subulate spines on adaxial side at base of costa or costule. Sori oblong, 4 or 5 pairs per pinnule, biseriate on both sides of costule, inframedial; indusia brownish, oblong, membranous, entire, persistent. Perispore surface without folds.
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