Japan Flora: Rhizomes capillary, branched, densely dark brown short-hairy; fronds 2-4 cm. long; stipes 3-15 mm. long, winged at the top; blades broadly ovate to broadly lanceolate, 15-25 mm. long, prominently cuneate at base, bipinnately or sometimes pinnately parted, the rachis winged; pinnae obliquely ascending, 2- to 5-parted, the seg­ments linear-lanceolate, 1-1.5 mm. wide, acute to subacumi* nate, entire; indusia few, winged only at base，obovoid, nearly 2 mm. long, 2-lobed to the middle, the lobes deltoid, acutish to obtuse, entire or undulate.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rare