Rhizome long-creeping, woody. Stipe and rachis dark chestnut-brown below, yellow-brown at apex, bearing dense non-glandular hairs at base; hairs sparser above; stipe 30–75 cm long, 3–6 mm diam. Lamina broadly ovate to broadly elliptic, 35–90 cm long, 25–70 cm wide, 3–4-pinnate at base, with sparse colourless and brown non-glandular hairs along midrib and veins. Primary pinnae in 15–25 pairs, shortly stalked; longest 23–45 cm long, 10–25 cm wide, arising at narrow angles. Secondary pinnae arising at wide angles; longest 6–15 cm long, 2–4.5 cm wide; midribs winged. Longest tertiary pinnae 10–25 mm long, 5–10 mm wide, often divided almost to midrib into narrow ultimate pinnules. Sori with or without paraphyses, 1 per sinus of ultimate segments. Spores dark, reticulate.
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