Rhizome erect, to c. 10 cm tall, or short-to long-creeping. Stipe with tubercles. Fronds not dimorphic. Lamina pinnate, 13.5–49.5 cm long, 2–30 cm wide; apical lobe c. (one-sixth-) one-ninth to one-tenth or less of lamina length. Pinnae simple, all except (occasionally) the lowest pair adnate to rachis; longest pinnae 1–13 (–31) cm long, 4–12 (–20) mm wide; rachis and abaxial surface of pinna midvein with tubercles. Sori 0.8–2 mm long, 0.8–1.5 mm wide, discrete, rarely contiguous when mature, in 1 or 2 rows on each side of pinna midvein; inner row (0–) 0.2–1 mm from pinna midvein, nearer to it when 2 rows on each side than when only 1 is present; outer row usually nearer to margin than to pinna midvein. [See also Green (1994: 614).]
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