Japan Flora: Rhi­zomes short-creeping; stipes 40-60(-100) cm. long, deep brown, 3-6 mm. across, scaly; scales spreading to reflexed, brown, lanceolate to linear-lanceolate, 5-15 mm. long, entire; scales on rachis 5-6 mm. long, narrowly linear-lanceolate, long- acuminate, spreading, rather dense; blades chartaceous-herba­ceous, ovate, 40-50(-80) cm. long, 30-40 cm. wide, 3-pin- natiparted; pinnae 5-8 pairs, linear-oblong, 6-10 cm. wide, long-acuminate, the petiolules 5-10 mm. long, the lowest pin­nae largest, nearly deltoid, the petiolules 2-3 cm. long; pinnules linear-oblong, obtuse to acute, cuneate at base, pinnatiparted, lowest posterior pinnules largest, 8-10 cm. long, the costas be­neath with narrow, linear-lanceolate scales; ultimate pinnules obliquely spreading, oblong-linear, rounded to sub truncate at apex, serrulate; sori in 1-3 pairs near base of the segments; indusia erose.   

Kyushu (Yakushima); rare. Formosa and n. India