Japan Flora: Somewhat smaller and less densely woolly; sterile fronds to 1 m. long; pinnules slightly thicker, linear-lanceolate to broadly lanceolate, acuminate to cuneate at base, petiolulatc (sessile in var. lati- pinnula. Tagawa). Apr.-May.
Hokkaido (s. distr.), Honshu, Shikoku, Kyushu; rather rare.