Japan Flora: Rhizomes long-creeping, very sparsely scaly, gla­brous or thinly pilose; fronds sparsely stellate-pilose; stipes straw-colored, 20-30 cm. long, 3-3.5 mm. wide, sparsely scaly, sometimes glabrate; scales membranous, broadly lanceolate, 3-5 mm. long, 1-2.5 mm. wide, acuminate, scarcely lustrous, gla­brous, brown; blades membranous, broadly lanceolate, 40-60 cm. long, 12-20 cm. wide, acuminate, slighdy narrowed at base, bipinnatiparted; pinnae horizontally spreading, lanceolate, 2-4 cm. wide, subopposite, acuminate, sessile, the lowest smallest， ovate-deltoid, 2-3 cm. wide; pinnules broadly lanceolate to oblong-ovate, 4-6 mm. wide, obtuse to acute, lobulate to coarsely crenate, broadly adnate at base, more or less auriculate and winged on the rachis, pilose especially on the costas of both sides; sori in 2 rows on the pinnules, nearer the costules than the margin, orbicular-elliptic; indusia absent. July-Sept.

Honshu (Hida, Etchu Prov. and northeastw.); rare.