Rhizome 3.5–6 mm diam.; internodes 9–14 cm long. Fronds to 6 m long, scandent, 2-pinnate. Stipes 0.3–1.25 m or more long, stout, initially bearing peltately attached dark brown lanceolate scales with fimbriate margins, glabrescent except near base; rachis initially bearing dark brown scales. Primary pinnae opposite, 0.25–2 m long, 10–40 cm wide. Secondary pinnae linear to lanceolate, 5–22 cm long, 0.8–3.5 cm wide. Ultimate segments divided almost to midrib, linear to triangular, glabrous above; undersurface glaucous-green to glaucous with pale brown obscure scales and branched hairs on midrib and veins; margins entire, often revolute. Sori of 2–4 pale to dark brown sporangia, half-way between margin and midrib.
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