Japan Flora: Rhizomes ascending to short-creeping, densely covered with the basal part of old stipes; fronds evergreen; stipes 10-30 cm. long; basal scdes rather dense, black-brown, broadly linear to linear-lanceo­late, 8-10 mm. long, the upper ones 5-8 mm. long, entire; blades broadly lanceolate, 25-40 cm. long, 8-18 cm. wide, acuminate, simply pinnate; rachis slender, the scales linear, black-brown, spreading, saccate at base; pinnae deltoid-lanceo­late, acuminate, crenate, somewhat falcate, glabrous above, with short hairlike scales beneath, short-petiolulate, pinnately lobed to lobulate, the costas with small saccate scales beneath; veins pinnate, oblique, the veinlets simple or forked; sori in 2 series, nearer the cos切 than the margin; indusia orbicular- reniform, 1-1.2 mm. across, brown, entire.                     

Honshu (Tdkaido to s. Kinki and Chugoku Distr.), Shikoku, Kyushu. Ryukyus and China.