Caudex short, erect; stipes lightly flushed red-brown, to 26 cm long, glabrous on abaxial surface, scales persistent near base only, to 12 × 1 mm, rigid, not very dark, distally contorted; lamina to 35 cm long; apical section 19 cm long, deeply trilobed with a broad non-decurrent base, midlobe to 4 cm wide, its margin irregularly obliquely obtusely lobulate, lateral lobes 14 × 2.8 cm with sinuous margins; pinnae 3 pairs, the bases of all cordate on the basiscopic side, acroscopic bases not auricled, rounded on the upper pinnae, subcordate on basal ones; uppermost pinnae 16 × 3.2 cm, basal ones 18 × 3.5 cm, acroscopic margins of all sinuous, basiscopic margins lobed as frond-apex; basal pinnae bearing a basiscopic lobe to 5.5 × 1.8 cm abruptly short-acuminate; main veins c. 8 mm apart along costae, cross-veins very irregular; lower surface bearing sparse minute hairs on costae, upper surface of costae densely short-hairy; sori in a row on each side of main veins, each on a short vein in an areole, slightly impressed; indusia rather large, shrivelling, glabrous.
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