Japan Flora: Rhizomes long- creeping, sparsely pilose, scaly, 2-3 mm. across; fronds decidu­ous, softly short-pilose; stipes 15-35 cm. long, slender, brownish toward base, thinly scaly while young; scales lanceolate, 1.5-2 mm. long, minutely pilose; blades broadly lanceolate to deltoid- ovate, 25-50 cm. long, 10-20(-25) cm. wide, acuminate, not narrowed at base, the rachis and costas short-pilose above; pinnae membranous, lanceolate or linear-lanceolate, 1-2 cm. wide, long-acuminate, the lower pinnae usually narrowed at base, sessile, short-pilose on lower side; pinnules oblong to oblong-lanceolate, 2.5-5 mm. wide, obtuse to acute, coarsely and regularly toothed; veinlets simple to forked, not reaching the margin; sori median, in 2 rows on the pinnules; indusia membranous, orbicular-reniform, pilose.  

Honshu, Shikoku, Kyushu; common. Formosa, Korea, and China.