Caudex short with tufted stipes; stipe to 40 cm long, atropurpureous; basal scales to 12 × 2 mm, margins conform; lamina deltoid in outline, to 35 cm long and 30 cm wide at its base, deeply 3-5-lobed, the basal lobes with basal basiscopic lobes on the largest fronds; apical lobe narrowly acuminate, its margins sinuous on small fronds, lobulate with acuminate lobules on large fronds, basal lobes similar, their apices upcurved; costae beneath dark at their bases, paler distally, main veins slender, slightly prominent, at c. 45°, almost straight, smaller veins very slender and not prominent; both surfaces glabrous except for a few hairs near base of the midrib on the upper surface; sori rather irregularly arranged, irregular in outline, not on free veins in the areoles; indusia thin, small, persistent, with a fringe of short slender hairs and some on the upper surface, the hairs rarely conspicuous.
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