Japan Flora: Rhizomes short-creeping, densely scaly, 5-7 mm. across, the scales appressed, lustrous, black, firm, deltoid-lanceolate, slighdy concave, acute, with short brown hairs toward margin; stipes 7-20(-30) cm. long, longer than the blades, with tardily deciduous brown appressed stellate hairs; blades firmly coriaceous, hastate, 5-15 cm. long, 3-10 cm. wide near base inclusive of the lateral lobes, pedately 3- to 5-lobed, truncate to subcordate at base, nearly glabrate and green on upper side, with gray- to red-brown densely appressed stellate hairs beneath; terminal lobe lanceolate, 4-12 cm. long, 1.5-4 cm. wide, acute to subobtuse, the lateral lobes obliquely spreading, narrowly deltoid-ovate to ovate, obtuse, sometimes with a small accessory lobule near base on the posterior side; costa slightly raised, the veins and veinlets concealed; sori round, densely covering the entire undersurface. Rocks in mountains.
Hokkaido, Honshu, Shikoku, Kyushu. Korea and Manchuria.