Plants 1-2 m tall. Rhizomes long creeping, covered with peltate scales. Stipe sprawling or scandent, 0.8-1.6 m; lamina several times dichotomously branched, all but basal axes pinnulelike with 2 rows of lobes; apical buds covered with brown ciliate scales and 2-pinnate bracts; ultimate pinnae deeply pectinately pinnatifid, broadly lanceolate, 12-18 × 2.5-5 cm; lobes horizontally spreading, opposite, 10-30 × 2-3 mm, base expanded, margin entire, apex obtuse or emarginate; lamina papery, with sparse brown stellate hairs and scales when young, glabrescent; costa prominent on both surfaces. Sori with 4 or 5 sporangia.
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