Japan Flora: Rhizomes short, erect; fronds deciduous; stipes crowded, stout, pale straw-colored, 15-30 cm. long, densely scaly near base; scales membranous, lanceolate to elliptic, 1-1.5 cm. long, abruptly acuminate, lustrous, pale brown, often slightly darker toward base, entire, deciduous; blades oblanceo­late, 70-90 cm. long, 17-25 cm. wide, gradually narrowed at both ends, the rachis with small, thin, linear to lanceolate scales; pinnae 30-40 pairs, pinnately lobed, spreading, slightly dilated at base, the median broadly linear to linear-lanceolate, 15-2(-25) cm. wide, acuminate, rounded-cordate, very short- petiolulate, slightly paler beneath, glabra tee on both sides; pin­nules elliptic, 3-7 mm. long, 4-6 mm. wide, to 12 nun. long and 10 mm. wide in the lowermost, rounded at apex, acutely toothed at tip, the lower pinnae much-reduced, pinnately lobed, deltoid-ovate, obtuse, 2-7 cm. long, 15-40 mm. wide; sori usually in 2 series, remote to rather close, nearer the costas than the margin; indusia orbicular-reniform, 1.2-1.5 mm. across, entire.  Woods.

Hokkaido, Honshu, Shikoku, Kyushu. Korea.