Japan Flora: Evergreen, glabrous; rhizomes short-creeping, densely scaly; scales dark-brown, membranous, broadly linear, 2.5-4 mm. long, sparsely toothed, filiform above; fronds approximate, deep green, lustrous, the blades linear, 25-50 cm. long, 5-8 mm. wide, gradually narrowed at tip, attenuate toward base to the short stipe, grooved above, the costa raised beneath; sori submarginal, on a groove partially covered by the recurved margin of blade. Shaded rocky cliffs and tree trunks.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rather common westw. Ryukyus, Formosa, China, Indochina, and n. India.