Japan Flora: Rhizomes densely scaly, long-creep­ing; scales on rhizomes and basal portion of stipe mem­branous, linear-lanceolate to lanceolate, 4-7 mm. long, about 1 mm. wide, gradually narrowed to a long filiform point, entire, yellowish brown; scales on stipes and rachis deep brown, lin­ear, 3-4 mm. long, subentire, filiform at tip; stipes few, remote, 30-60 cm. long, longer than the blade, pale green to straw- colored, rather sparsely scaly; blades ovate to broadly so, 20-40 cm. long, 12-25 cm. wide, distinctly tailed at apex, bipinnate or subtripinnate, with 1 (to few) pinnate branch on the low­est pinnae; pinnules coriaceous, oblong-ovate to narrowly ovate, 6-20 mm. long, abruptly spine-tipped, spine-toothed, glabrate, lustrous above; sori median, in 2 series on the pinnules; indusia orbicular-reniform, about 1 mm. across. Woods.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu. Korea, Ryukyus, Formosa, China, Malaysia to India, and Polynesia.