Scales on caudex to 15 × 1.5 mm, rather firm, entire; stipe 3-15 cm long, with rachis bearing narrower scales on abaxial surface; lamina to 100 cm long; pinnae very numerous, many lower pairs gradually reduced, the lowest sometimes only 1 cm long, upper pinnae also gradually reduced and grading to the frond-apex; middle pinnae commonly 10 × 1.5 cm, largest seen 13 × 1.8 cm, base variably cordate on acroscopic side, strongly so on basiscopic side; margins of larger pinnae distally irregularly sinuate to crenate; apex of pinnae on small fronds obtuse, on larger fronds gradually attenuate; lower surface of rachis densely covered with short erect hairs (residual narrow scales also present); lower surface of costae lacking hairs but sometimes bearing small scales; upper surface glabrous; sori mostly at apices of veinlets, in larger pinnae in 2 rather irregular rows nearer to margin than to costa, the inner row on basal acroscopic veinlets; indusia covering mature sori.
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