Japan Flora: Stipes 20-50 cm. long, with dense blackish appressed scales; blades firmly herbaceous to thinly coriaceous, ovate to oblong-ovate, 25-45 cm. long, 20-30 cm. wide, acuminate, bipinnate, the scales of rachis dense, black, appressed, linear to nearly fiiliform, dilated; pinnae petiolulate, the lowest on a rather prominent petiolule 1.5-2 cm. long, the rachis beneath with appressed rusty-brown to blackish nearly filiform scales dilated at base; pinnules broadly lanceolate, deltoid-lanceolate, or narrowly oblong, 1-3 cm. long, 3-20 mm. wide, obtuse to acute, often auricled at base, toothed, pinnately lobed to parted and the lower ones very short-petiolulate, the lowest pinnules of the lowest pinnae largest, to nearly 10 cm. long, pinnate in lower half; sori median; indusia orbicular-reniform, entire, usually less than 1 mm. across. 

Kyushu (s. distr. incl. Yakushima). Ryukyus and Formosa.