Rhizome 5-9 mm thick, internodes to 0.5-3 cm long; vascular strands with bundle sheath incompletely to fully sclerified; sclerenchyma strands many to very many. Rhizome scales pseudopeltate, spreading, 9-12 by 2.5-4.5 mm wide, acute, evenly coloured, dull brown, often with an indistinct pseudocosta, entire or short-dentate, often with irregular, coarse protrusions. Fronds pinnate, dimorphic. Fertile fronds: stipe 24-36 cm long; lamina 22-40(-110) cm long, pinnae 5-12(-35) pairs, the lowest pinnae of well-developed fronds often free, others adnate; largest fertile pinna is 1-4, blade 12-20 by 0.8-3.5 cm, widest at 4-7 cm, with a cusp 1.5-4 cm long. Sterile fronds: stipe 19-39 cm long; lamina 20-41 cm long, pinnae 3-12 pairs, basal pinnae often fertile near apex; largest sterile pinna, blade 12-17 by 1.5-3.1(-4.5) cm, widest at 4-6.5 cm, with a cusp 1.5-3.5 cm long, with 4-6 rows of closed areoles. Rachis and costae on upper surface grooved. Venation: connecting veins distinct to veinlets distinct; veinlets free and anastomosing, free veinlets excurrent and recurrent. Hydathodes frequent, calcareous scales not persistent. Margin cartilaginous, flat or thickened; notches regularly present. Sori round, occasionally slightly elongate towards margin, single between adjacent veins, in one row between costa and margin, at 2-7 mm from costa, 2-3 mm wide, superficial.
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Rhizome ca. 5 mm in diam., densely scaly; scales reddish brown or turning darker when old, lanceolate, broad at peltate base, margin entire or remotely denticulate, apex acuminate and hair-tipped. Fronds monomorphic, 25-50 × 20-30 cm. Stipe straw-colored, 15-20 cm; lamina pinnatisect, base cordate, margin notched or subentire. Lateral lobes/pinnae 2 or 3 pairs, opposite, linear-lanceolate, 12-15 × 1-1.5 cm, ascending at base, falcate (bending downward) at upper portion, apex acuminate. Costa and lateral veins distinct, veinlets obscure. Lamina herbaceous, both surfaces glabrous. Sori orbicular, large, slightly closer to costa.
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