Japan Flora: Fronds deciduous, large, more or less pilose; rhizomes long- creeping, remotely leaved, with red-brown jointed callose flex­uous short hairs; stipes 10-60 cm. long, sulcate on upper side, yellow-brown, dull, 2.5-4 mm. across, scabrous; blades deltoid- ovate to oblong, 20-120 cm. long, 16-60 cm. wide, acuminate, 3- or 4-pinnate, the pilose indument jointed, callose at the base; pinnae broadly lanceolate to oblong-ovate, acuminate, short- petiolate, spreading, the lower 2 or 3 pairs larger, 13-35 cm. long, 5-15 cm. wide; pinnules thinly herbaceous to mem­branous, oblong-ovate, 1-3 cm. long, 4-12 mm. wide, obtuse, sessile, pinnately lobed to parted, often toothed, green above, paler beneath, the lobes spreading, ovate, obtuse to rounded; vcinlets reaching the Up of the teeth; sori intramarginal, naked, rounded, 1-1.5 mm. across, yellow-brown, often covered by the slightly recurved tooth of the pinnules.  Hills and low mountains.

Honshu (Ugo and Rikuzen Prov. sou th w.), Shi­koku, Kyushu. Pantropic, also in Korea, Ryukyus, For­mosa, and China.