Tree fern; trunk to 3 m tall, with round leaf scars below the crown; stipe bases not persistent. Fronds: stipe with relatively few, caducous brown scales with pale margin and without terminal seta; costae and costules with numerous matted, pale bubble-like bullate scales 0.15–1 mm long, and some short, crumpled hairs below, with dense, long, pale, antrorse hairs above, few or absent on costules; lamina tripinnate; primary pinnae to 35 cm long, relatively shortly acuminate; secondary pinnae 4–7 cm long, 1–2 cm wide; largest pinnules 12–15 pairs, 5–9 mm long, 2–3 mm wide, free, deeply toothed, with teeth acute, usually reflexed. Sori attached on one side, usually enclosed in deflexed pinnule lobes.
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