形態特徵

• Rhizome stout, fronds tufted, scales chestnut brown, lanceolate, hair-pointed, sometimes with dark longitudinal striations.
• Fronds narrowly deltoid in outline; stipe brown at base, usually longer than lamina, 18-35 cm long, scaly at base; lamina 12-25 cm long, 8-20 cm wide, bipinnate to tripinnatifid; pinnae opposite, petiolate, first basiscopic pinnule of lowest pinnae elongated; pinnules obtuse, serrate at apex; without scales on upper stipe, rachis, rachillae or undersurface.

分布

• 世界 : Japan, the Ryukyus.

引證標本

TAIPEI: Wulai, Kuo 2945; Wantan, Shimizu 3429. PINGTUNG: Chingshuiyin, Shimizu 3894.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 328. 1994.  (Fl. Taiwan 2nd edit.)