形態特徵

• Rhizome slender, long creeping, young parts covered with a mass of rusty-brown long multicellular hairs, soon becoming nearly glabrous.
• Stipes distant, stramineous, 8-18 cm long, very sparsely scaly; stipe scales very small, thin, ovate; lamina ovate, tripinnate, glabrous, about 8-15 cm long by 4-8 cm wide; pinnae short petiolate; rachis groove open to rachilla grooves; pinnules cuneate at base, lobes incised at apex.
• Sori round; indusia thin, attached to basiscopic side of sorus, shollow cup-shaped, soon fugacious.

分布

• 世界 : Siberia, Korea, Japan.

引證標本

ILAN: Nanhutashan, Hsu 5900. HSINCHU: Tapachienshan, Hsu 12164, Kuo 1781*. TAICHUNG: Mt. Sylbia, Huang & Hsieh 7206. CHIAYI: Tungpu, Kuoh 1362; Mt. Morrison, Hsu 6324. HUALIEN: Tayulin, Kao 7760, Hsu 1102; Hohuanshan, Kuo 422.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 430. 1994.  (Fl. Taiwan 2nd edit.)