Plants ca. 1 m tall. Rhizomes not seen. Stipe dark brown, ca. 35 cm, ca. 3 mm wide, glabrous; rachis 2 or more times dichotomously branched; apical buds ovate, small, covered with brown hairs, subtending bracts small and fugacious, so buds often apparently ebracteate; rachis with a pair of lateral pinnae at each dichotomy; first pair of lateral pinnae obliquely spreading, broadly lanceolate, 7-9 × 3-4 cm, base and apex attenuate; second pair smaller, ca. 4 × 1.5 cm; ultimate pinnae lanceolate or oblong-lanceolate, 15-25 × 4-7 cm, base attenuate, apex acuminate, subtended by lateral pinnae; lobes 25-40 on each side, lanceolate or linear-lanceolate, 3-3.5 × 0.4-0.6 cm, margin entire, apex obtuse or emarginate; lamina papery, glaucous abaxially, green adaxially, glabrous; costae prominent abaxially; veins 4 or 5 in each group. Sori in 1 line on each side of costule; sporangia 6-8.
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