Plants summer-green. Rhizome erect or ascending, densely covered with lanceolate reddish brown scales. Fronds 40-70 cm; stipe stramineous, 22-34 cm, 4-5 mm in diam. at base, lower part often persistent, densely scaly; scales reddish brown, lanceolate and linear, lower part of stipe with larger ovate reddish brown scales. Lamina bipinnate, narrowly ovate or narrowly elliptic, 32-60 × 18-26 cm, slightly contracted toward base, acuminate; rachis without proliferous bulbils, stramineous, both surfaces densely scaly; scales reddish brown, lanceolate and linear. Pinnae 20-25 pairs, alternate, attached at nearly right angles to rachis, shortly stalked, linear-lanceolate, slightly ascendant, middle pairs 8-15 × 2-2.5 cm, bases obliquely broadly cuneate, auriculate acroscopically, pinnate, apices long acuminate and sometimes caudate. Pinnules 14-20 pairs, nearly opposite, slightly ascendant, obliquely oblong, 1-1.8 cm × 5-8 mm, bases obliquely cuneate, auriculate acroscopically, margins with acute small teeth, apices acute; pinnules of basal acroscopic pinnae largest and often pinnatilobate; filiform microscales on abaxial surface denser than on adaxial surface; frond texture papery; venation pinnate, abaxially distinct. Sori in 1 row on each side of pinnule midrib, exindusiate.
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