Japan Flora: Rhizomes erect or nearly so, covered with the stubs of old stipes; stipes 15-30 cm. long, slender, straw-colored, dark brown toward base, thinly scaly in upper part, more densely so near base; scales near base of stipe narrowly lanceo­late, 10-15 mm. long, 1.5-2 mm. wide, entire, slightly lustrous, with a dark brown longitudind band in the center, the scales on upper part of the stipes shorter and thinner, lighter brown, often curled, lanceolate, 7-10 mm. long, 2-3 mm. wide; blades thinly herbaceous, ovate-deltoid to nearly deltoid, 17-30 cm. long, 15-25 cm. wide, acuminate, not narrowed at base, bipinnate or tripinnatiparted, sparsely scaly while young, glabrescent; pinnae 7-14 cm. long, 3-4.5 cm. wide, acuminate, equilateral, slightly narrowed at base, sessile; pinnules nar­rowly oblong-ovate, 15-20 mm. long, 5-9 mm. wide, obtuse to subacute, slightly oblique, sessile, pinnately cleft to parted; pinnules elliptic, 2-4 mm. long, few-toothed; sori 7-12 to a pinnule, subcostal; indusia thin, oblong, straight, often athyri- oid, about 1 mm. long, erose-ciliate. Mountains.

Hok­kaido, Honshu (centr, distr. to Kii Prov.), Shikoku; rather rare.