形態特徵

• Rhizome creeping, stout; scales brown.
• Stipes 30-50 cm long, green, sparsely scaly; lamina large, tripimatifid, pinnae petiolate; pinnules nearly sessile, lobes rounded, cut 1/2 way or more to costa; veins free, simple or forking towards apex.
• Sori linear, usually single, borne on basal 1/2 of veinlet; indusia thin.

分布

• 世界 : S. China, Japan, the Ryukyus and the Philippines.

引證標本

TAIPEI: Tatungshan, Kuo 2332; Pataoershan, Kuo 2970. ILAN. Oobishan, Masamune s. n. 1938, HSINCHU: Inouye, Sasaki s. n. 1929. NANTOU: Chingshuikou, Huang s. n. 1959. CHIAYI: Fenchihu, Kuo 1630. PINGTUNG : Kenting, Kuo 691. TAITUNG: Kutzulunshan, Kuo 1292. HUALIEN: Lintienshan, Feung 828.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 436. 1994.  (Fl. Taiwan 2nd edit.)