Rhizomes creeping; stipes rather stout, 40-60 cm. long, scabrous, brown; scales black-brown, dense, 3-4 mm. long, deflexed; blades herbaceous, broadly ovate, 40-80 cm. long, 30-60 cm. wide, acuminate, 3-pinnate to 3-pinnatiparted; pin­nae 7-10 pairs, equilateral, the upper ones gradually reduced, alternate, narrowly oblong-ovate, the lower ones 40-45 cm. long, acuminate, not contracted at base, distinctly petiolu­late; pinnules 4-10 cm. long, 1.5-2,5 cm. wide; ultimate pinnules oblique, oblong-ovate to oblong, 6-20 mm. long, 4-8 mm. wide, acute m rounded, mucronate, entire or toothed to pinnatilobed, sessile, often slightly decurrent on the rachis; sori costal, 5-12 on each pinnule, ascending, linear; indusia ob­long, solitary, straight, about 1.5 mm. long.

Kyushu (Yakushima); rare. Formosa to India. 

var. sub glabraturn (Tagawa) Tagawa. Stipes and rachis sparsely scaly. Kyushu (Yakushima)