Japan Flora: Rhizomes short; stipes few, spreading, short, 0.5-5 cm. long, densely scaly, the scales firmly membranous, spreading, rusty-brown, linear-lanceolate to linear, 2.5-4 mm. long, long-acuminate, with woollike hairs on margin toward base; blades lanceo­late, 5-18 cm. long, 1.5-3.5 cm. wide, slightly narrowed at base, the rachis often much-prolonged, proliferous and rooting at the tip; pinnae 15-35 pairs, firmly herbaceous, spreading, dark green and glabrate above, paler and with hair like scales beneath, sessile, narrowly oblong to narrowly ovate-oblong, 1-1.5 cm. long, obtuse, with ascending, short, awn-tipped teeth, the anterior side oblique, broadly cuneate at base, auri- cled; sori in 1 series on anterior side near margin of the pinnae; indusia large, brown, orbicular, about 2 mm. across, depressed, incurved on margin, entire, persistent, inflated. Shaded rocks in mountains.

Hokkaido, Honshu, Shikoku, Kyushu. Korea, China, Manchuria, to e. Siberia.