Japan Flora: Terrestrial, evergreen fern; rhi­zomes slender, scarcely 1 mm. across, long-creeping, densely red-brown woolly, loosely leaved, with few fugacious jointed short hairs at the tip; fronds 3-7 cm. long; stipes slightly shorter to longer than the blade, straw-colored, with Kd-brown somewhat woolly hairs 1-2 mm. long on lower half, with spreading pale brown jointed flexuous hairs 0.2-0.3 mm. long on upper half; blades herbaceous, ovate to ovate-oblong, 2-5 cm. long, 1-1.5 cm. wide, obtuse to subacute, 1 (-2)-pinnate, with numerous spreading brown jointed hairs about 0.3 mm. obtuse, entire or 2- or 3-lobed; veins obsolete on both sides, solitary in the lobes, not reaching the margin; sori along the veins on underside of the pinnules, margin; sori along the veins on underside of the pinnules, often confluent with the adjacent ones, rusty-brown, exindusi- ate. Among mosses on rocks in mountains.

Hokkaido, Honshu, Shikoku, Kyushu; rare. Korea, China, Manchuria, and e. Siberia.