形態特徵

• Rhizomes long-creeping, 1-2 cm in diameter, scaly, the scales pale-brown, lanceolate, 5 mm long, hairy on margins.
• Fronds distant, 1 cm apart; stipes about 16 cm long, dark at base; laminae ovate-triangular, about 15 cm long, 8 cm wide, the pinnae adnate to the rachis except for the lowest pair; lateral veins of the pinna lobes reaching the margins.
• Sori small, exindusiate.

分布

• 台灣 : Growing in coniferous forests at higher elevations.
• 世界 : China, Himalayas, Korea, Siberia, Japan, N. Europe and N. America.

引證標本

TAIPEI: Chihsingshan, Tsai 9374. TAOYUAN: Peichatienshan, Shieh & Tsai 4401. NANTOU: Hohuanshan, Kuo 426; Shanlinchi, Shieh & Tsai 6514.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 392. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)