Plants up to 1.2-1.8 m tall. Rhizome creeping. Fronds approximate; stipe ebeneous, ca. 1/3 as long as lamina, stout, with raised ridges on base; scales appressed, brown, small, ovate-lanceolate, thin; lamina lanceolate or ovate-lanceolate, ca. 70 × 50 cm, bipinnate, base somewhat narrowed, truncate, apex acuminate; pinnae 25-32 pairs, oblique, remote, narrowly lanceolate, ca. 25 × 4 cm, apex caudate-acuminate, basal several pairs shortly stalked; pinnules 20-24 pairs, spreading, remote, oblong or orbicular-falcate, apex obtuse, basiscopic base cuneate, acroscopic margin slightly raised, sessile. Lamina herbaceous; rachis and pinna rachis similar in color to stipe, sparsely scaly; scales castaneous, lanceolate and linear-lanceolate, serrate, especially dense abaxially; veins pinnate, forked, conspicuous on both surfaces, apex with distinct hydathode adaxially. Sori in 1 row on each side of costa, nearer to costa than to margin, upper part of pinnae usually sterile; indusia castaneous, orbicular-reniform, entire.
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A fern. It grows 1.2-1.8 m tall. It has a creeping rhizome.
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