Japan Flora: Rhizomes short, with chartaceous, lanceo­late, dark brown scales about 1.5 mm. long; fronds tufted; stipes 1-2 mm. across, dark purple- to chestnut-brown, lustrous, 3-15 cm. long, naked; blades broadly linear to linear-lanceo­late, 10-40 cm. long, 15-40 mm. wide, the rachis dark purple­brown, lustrous, sulcate on upper side，often prolonged and gemmate at tip; pinnae spreading, obliquely oblong to nar­rowly oblong-ovate, 5-10 mm. wide near base, the lower ones deflexed, obtuse to rounded, sessile, crenately toothed at the tip, entire toward the base, often obsoletely auricled on anterior side; sori few to a pinna, straight; indusia 1-4 mm. long, very rarely diplazioid.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu. Ryukyus, Formosa, s. China to India.