Japan Flora: Rhizomes short, densely covered with stubs of old stipes and dark brown lus­trous linear scales 3-4 mm. long; fronds glabrous, fragile, tufted; stipes 7-20 cm. long, longer than the blades, sparsely scaly at base; scales obsoletely striate, terete, lustrous, dark purple-brown; blades thickly herbaceous, triangular-ovate, 4-15 cm. long, acuminate, bipinnatiparted in the lower portion, pinnatiparted in the upper portion, the rachis sulcate on upper side; pinnae spaading, obtuse, sessile, gray-green and glabrous on upper side, white-farinose beneath, the lowest ones longer on the posterior side，the upper pinnae decurrent on the rachis; pinnules lobed to parted, crenate, rounded at apex; veins obso­lete; sori marginal; false indusia confluent and lobed. Rocks.

Honshu (Kanto Distr.); rare.