Japan Flora: Fronds 10-25 cm. long; rhizomes filiform to capillary, hairy, more especially while young; stipes 2-10 cm. long, narrowly winged, with a tuft of dark brown straight hairs at base; blades broadly lanceolate to ovate, 5-17 cm. long, 2-4 cm. wide, 2- or 3-pinnatiparted, the rachis narrowly winged; pin­nae usually many; pinnules short, entire or few-parted; ulti­mate segments narrow, usually elongate, about 0.7-1 mm. wide, obtuse; indusia broadly ovate to suborbicular, about 1 mm. long, the valves entire, obtuse to rounded at apex.

Honshu (Iwashiro and westw.), Shikoku, Kyushu; more common southward. Ryukyus, Formosa, widely distributed in the tropics and subtropics.