Rhizome short-creeping, 0.6–1 mm diam.; scales rounded, to c. 0.5 mm long, pale brown. Fronds dimorphic. Stipes clustered, mostly 5–13 cm long, from c. half the length of lamina to almost as long, stramineous. Lamina 1-pinnate to partly or fully 2-pinnate, ±linear. Fertile lamina or fertile pinnae of 2-pinnate forms c. 10–20 cm long, 1.2–2 cm wide; pinnules to 12 mm long and 5 mm wide, sessile or very shortly stalked, mostly asymmetrically flabellate or more elongate, but lowermost ones often decurved, herbaceous; lower margin entire; upper margin with 1–4 shallow incisions. Sterile lamina or sterile pinnae of 2-pinnate forms 7–14 cm long, 1.2–1.5 cm wide; pinnules smaller than fertile ones, similar in shape; lower margin entire; upper and outer margins crenate. Veins free, simple or twice-forked. Sori continuous or broken at incisions; indusium 0.3–0.5 mm wide and extending almost to margin, greenish to pale brown, entire to slightly irregular. Spores trilete, pale brown, smooth.
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