形態特徵

• Rhizome short, erect.
• Stipes short, tufted, brown to purple at base, greenish above; fronds linear, 5-12 cm long, 8-12 mm wide, pinnate; rachis green, grooved above, not winged; pinnae oval, rhombic to fan-shaped, cuneate at base, 3-5 mm long; margins crenate.
• Sori few, indusia with a crenate margin.

分布

• 台灣 : Growing in crevices of rocks at high altitudes in Taiwan.
• 世界 : North America, Europe, Himalayas, Pakistan, Siberia, Japan.

引證標本

ILAN: Nanhutashan, Ohwi 4171. HSINCHU: Tapachienshan, Yang 16,Kuo 1789. KAOHSIUNG: Kuanshan, Cheng 510. HUALIEN: Nengkaoshan, Ohwi 3328.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG. 1994. Flora of Taiwan, second edition 1: 463. (Fl. Taiwan 2nd edit.)