Japan Flora: Rhizomes short, rather stout; fronds erect, tnfted, 50-70 cm. long, glabrous, sparsely scaly while very young; stipes 20-30 cm. long, pale green to slightly reddish, more densely scaly toward base; scales membranous, brown, unequal, linear to broadly lanceolate, 7- 12(15) mm. long, 1-4 mm. wide, en­tire; blades herbaceous, oblong or narrowly oblong-ovate, sometimes narrowly ovate, 30-40 cm. long, 12니 8 cm. wide, short-acuminate, slightly narrowed at base, bipinnate, the rachis and pinnae beneath scaly while young; pinnae 8-10 pairs, the lower ones somewhat interrupted and subopposite, broadly lanceolate, 6-10 cm. long, 2-3 cm. wide, acumi­nate, sessile, ascending to spreading; pinnules narrowly ovate, 1-2 cm. long, 5-8 mm. wide, acute, usually broadly cuneate at base, sessile, pinnately cleft to parted, the segments elliptic, obtuse, mucronate-toothed; sori solitary on the lower veinlets of the pinnules.  Alpine slopes. 

Hokkaido, Honshu (centr. distr.); locally abundant. Kamchatka, Siberia to Europe, and N. America.