Japan Flora: Rhizomes short; fronds tufted; stipes 25-40 cm. long, snberect, as long as to slightly shorter than the blades, sparsely scaly in upper part, rather densely so toward the base, straw-colored; scales linear- lanceolate to narrowly oblong-ovate, 10-12 mm. long, 1-5 mm. wide, fuscous, with a lighter brown entire margin，lustrous; blades herbaceous, oblong-ovate to ovate, 30-60 cm. long, 15-30 cm. wide, short-acuminate, bipinnate, glabrous, the rachis very thinly scaly while young; pinnae 10-15 pairs, lan­ceolate, 10-15 cm. long, 2-4 cm. wide, long-acuminate, sessile, the lower ones shorter, subopposite; pinnules spreading, equilateral, broadly lanceolate to narrowly ovate, 8-15 (-20) mm. long, 3-7 mm. wide, obtuse to short-acuminate, toothed, often slightly adnate to the rachis, pinnately lobed to cleft; sori 8니6 to a pinnule, subcostal; indusia oblong, straight to curved, athyrioid, 0.7-1 mm. long, erose, long-ciliate. Mountains.

Hokkaido, Honshu. s. Kuriles and Sakhalin.