Japan Flora: Rhizomes creeping, densely scaly; stipes approximate, 30-45 cm. long, straw-colored to reddish; scales membranous, dense toward base, sparse above, lanceolate, the lower 5-10 mm. long, the upper 3-5 mm. long, entire, decide ous, the base persistent, callose, red-brown; blades vivid green above, paler beneath, firmly herbaceous to subcoriaceous, nar­rowly ovate, 40-60 cm. long, 25-35 cm. wide, long-acuminate; scales on rachis sparse, \-2 mm. long, 】inear-lanceolate, deciduous; pinnae 6-8 pairs, 15-30 cm. long, pinnate or partially bipinnate, petiolulate, long-acuminate, the lateral gradually grading into the terminal pinna; pinnules herba­ceous to firmly so, ovate, sometimes oblong, oblique, 12-30 mm. long, 6-15 mm. wide, acute, short-petiolulate, pinnately lobed or parted, mucronate-toothed, nearly glabrous above, with hairlike scales beneath while young; sori nearly median; indusia orbicular-reniform, sparsely ciliolate, about 1 mm. across.

Honshu (from Izu Prov., Tokaido to Kinki and Chugoku Distr.), Shikoku, Kyushu. China.