形態特徵

• Rhizome short, horizontal, thick; basal scales thin, rusty-brown, narrowly lanceolate, attenuate.
• Stipes tufted, slender, stramineous, 10-15 cm long, scaly at base; lamina narrowly lanceolate, 10-25 cm long, 3-7 cm wide, apex pinnatifid, bipinnatifid or bipinnate at base; pinnae 3-4 cm long, petiolate, alternate, anadromous; pinnules oblong, obtuse, basal pair free, others adnate, lobed, basal adaxial pinnule usually larger than the abaxial one; rachis and underside bearing scattered linear scales.
• Sori round; indusia reni- form or J-shaped, crossing a veinlet.

分布

• 世界 : China, the Philippines, Malay and Thailand.

引證標本

HSINCHU: Rokudyotaizan, Suzuki 20624; Chutung, Simozowa s. n. 1938. NANTOU: Tientzu to Yuinhai, Kao 5838; Lienhuachih, Kuoh s. n. 1971. CHIAYI: Mt. Alishan, Huang s. n. 1960, Shieh & Tsai 6758; Tungpu, Hsu 7338.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 416. 1994.  (Fl. Taiwan 2nd edit.)