Rhizome erect, woody. Fronds 2-pinnate, up to 1 m × 30 cm; stipe shiny, 25-30 cm, slender; lamina ovate-oblong, 30-45 × ca. 20 cm; pinnae 7-11 pairs, subopposite, ascending, ca. 4 cm apart, shortly stalked, sessile upward, oblong-lanceolate, 10-15 × ca. 4 cm, apex caudate, imparipinnate; pinnules 10-12 pairs, approximate, ovate or oblong, 1.5-2 × 0.8-1.2 cm, base obtuse, sessile, upper pinnule base connate; apical pinnae oblong, simple, sterile; middle pinnae pinnate with a large apical pinnule up to 4-5 cm and numerous smaller, oblong lateral pinnules; basal 4-7 pairs of pinnae like middle ones but shorter and often fertile, 4-5 × ca. 1 cm; fertile pinnules linear, 5-7 mm. Sporangia on margin of reduced basal pinnule.
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