Plants evergreen. Rhizome erect or ascending, short, densely covered with linear brown scales. Fronds 50-80 cm; stipe yellowish brown, 20-30 cm, ca. 4 mm in diam. at base, densely covered with linear, lanceolate and larger scales; large scales bicolorous, blackish brown at middle, shiny, ovate or ovate-lanceolate, up to 13 × 6 mm, subentire, caudate. Lamina bipinnate, deltoid-ovate, 32-60 × 14-23 cm near base, base slightly contracted, fertile, apex acuminate, fertile; rachis without proliferous bulbils, abaxially covered with linear and lanceolate scales; lanceolate scales often blackish brown, entire, acuminate. Pinnae 14-21 pairs, alternate, slightly ascendant, shortly stalked, lanceolate, not contracted toward base, bases asymmetrical, apices acuminate; lower pinnae 5-12 × 2.2-2.8 cm, 1-pinnate; costa adaxially sulcate, abaxially covered with linear brown scales. Pinnules 14-21 pairs, alternate, shortly stalked, oblong, 0.9-1.2 × 0.5-0.6 cm, bases cuneate, with inconspicuous rounded auricles, margins entire, or sparsely spinulose, apices obtuse and mucronate; basal acroscopic pinnules largest, deeply incised; both surfaces sparsely covered with shortly filiform microscales; frond texture papery to thinly papery; venation pinnate, lateral veins 5-8 pairs, dichotomous, relatively distinct. Sori 1-9 per pinnule, in 1 row on each side of midrib, or only in 1 row acroscopically, close to pinnule margins, terminal on veinlets; indusia present, entire. 2n = 164.
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