Japan Flora: Firm evergreen fern; rhizomes creeping, with close stipes, 4-8 mm. across, densely covered with pale brown hairs 4-6 mm. long; stipes 15-40 cm. long, lustrous, straw-colored, glabrous in upper part, hairy at base, those of the fertile fronds slightly longer than the sterile; sterile blades coriaceous-herbaceous, nearly concolorous, broadly lanceolate to ovate, 8-20 cm. long, 2- 8 cm. wide, obtuse, entire or bifid at apex, rounded at base and then abruptly acute, 3- to 5-nerved; fertile blades broadly linear, 10-18 cm. long, about 1 cm. wide, 3-nerved, the lateral nerves marginal; sporangia densely covering the surface except on the costa. Hills and low mountains.

Honshu (Izu Isis., Totomi Prov., and s. Kinki Distr.), Shikoku, Kyushu; rare. Ryukyus, Formosa, and China to Malaysia.