Caudex short, suberect; stipe to 70 cm long, mid-castaneous, glabrescent, basal scales to 15x2 mm, firm, glossy, twisted distally, fringed when young; lamina to 100 cm long consisting of 1-5 pairs of pinnae and pinna-like apex which may be joined to the uppermost pair of pinnae; pinnae to 25 × 6 cm, entire with narrowly cuneate base and caudate-acuminate apex; basal pinnae (sometimes 2 pairs) with stalk 2-3 cm long and a basiscopic lobe which may be more than 20 cm long; main veins 6-10 mm apart along costae and at a broad angle to them, distally upcurved; cross-veins rather regular, between them 2 irregular rows of areoles with included veinlets; lower surface of costa and main veins variably minutely hairy, upper surface usually quite glabrous; sori mostly on veins surrounding areoles, in a row on each side of a cross-vein, usually 4-6 in a row in the middle of a large pinna; indusia reniform, firm, persistent.
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