Japan Flora: Rhizomes short; stipes 20-60 cm. long, brown, sparsely scaly throughout while young, rather densely so at base; scales pale brown, deciduous, spreading, broadly lanceolate, 3-10 mm. long, acuminate, entire; basal scales membranous, linear-lanceolate, 10-15 mm. long; blades nar­rowly ovate or oblong-ovate, 30-50 cm. long, 15-25 cm. wide, bipinnate, or the larger often tripinnate at base, acuminate, the rachis straw-colored, usually suffused red-purple, often pale brown on lower half beneath, smooth, lustrous; pinnae 7-10 pairs, deltoid-ovate to -lanceolate, obliquely spreading, short- caudate at apex, petiolulate, the lowest pinnae oblique; pin­nules broadly lanceolate to broadly oblong-ovate, 1-3 cm. long, 4-20 mm. wide, obtuse to acute, mucronate-toothed, nearly gla­brous on both sides, usually pinnately parted to lobed, the low­est pinnule of the basal pinnae largest, 5-12 cm. long, often pinnate; divisions of the pinnules narrowly oblong, 2.5-5 mm. wide, obtuse; sori in 2 distinct or in more or less irregular series, median on the ultimate pinnules; indusia orbicular-reni- form, about 1 mm. across, entire, slightly incurved on margin.

Honshu (s. Kan to through Tokaido to Kinki Distr.), Shi­koku, Kyushu. Ryukyus, Formosa, China to Malaysia, and India.