Plants evergreen. Rhizome erect, short, rhizome apex and stipe base densely scaly; scales dark brown, ovate-lanceolate, toothed at apex. Fronds 30-50 cm; stipe stramineous upward, 10-20 cm, sparsely scaly or subglabrous. Lamina hastate-lanceolate, green when dry, 20-25 × 8-12 cm at base, with 3 linear-lanceolate pinnae; lateral pairs shorter, 2-5 × 1-2 cm, shortly stalked, pinnate, shortly acuminate; pinnules 5 or 6 pairs; middle pinna much larger than lateral pinnae, 20-25 × 3-6 cm, long stalked, 1-pinnate, long acuminate, pinnules 20-25 pairs; all pinnules alternate, attached at nearly right angles to rachis, lower pairs shortly stalked, upper pairs subsessile, middle part 1.5-2 cm × 6-8 mm, obliquely rectangular, apices acute or obtuse, acroscopic base with deltoid auricles, margins coarsely toothed, teeth with small spinules at apex; both surfaces glabrous; frond texture thinly papery; venation pinnate on lobes, veinlets simple, rarely forked. Sori terminal on veinlets; indusia present, slightly erose, caducous. Spores elliptic in polar view, semicircular in equatorial view, perispore sculpturing reticulate. 2n = 41.
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