Japan Flora: Rhizomes erect, short; fronds soft, thin, tufted; stipes 15-35 cm. long, pur­plish, glabrous, sparsely scaly at base; scales pale brown, mem­branous, lanceolate to linear-lanceolate, 3-4 mm. long, entire; blades oblong-ovate to ovate, 20-40 cm. long, 15-25 cm. wide, acuminate, not narrowed at base, bipinnate; pinnae broadly lanceolate to oblong-ovate, 2-5 cm. wide, long-acuminate, obliquely spreading, short-petiolulate; pinnules narrowly ovate to oblong-ovate, 1.5-2.5 cm. long, 5-10 mm. wide, acute to obtuse, slightly oblique and cuneate at base, very short-petio lulate to sessile, lobulate to parted, acutely mucronate-toothed, with a few fleshy deciduous bristles along the costas on upper side; sori in 2 rows along the costas; indusia lanceolate to oblong, straight (asplenioid), sometimes also athyrioid, very rarely diplazioid, entire. Low mountains.

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