形態特徵

• Stipes 12-16 cm long, black, without scales excopt at base; basal scales lanceolate, black, clathrate; fronds lanceolate, to 25 cm long by 4 cm broad, tripinnatifid at base, pinnate at apex; anadromous, upper surface almost black in herbarium specimens.
• Indusia brown about 2.5 mm long.

分布

• 台灣 : Growing on rock and steep banks.
• 世界 : Europe, Africa, Kashmir, Pakistan.

引證標本

TAICHUNG: Mareppa, Inoue s. n. 1932; Shengkuan, Kuo 3924. CHIAYI: Mt. Alishan, Yamada 62, Simozawa 152. HUALIEN: Hohuanshan, Kuo 71.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 451. 1994.  (Fl. Taiwan 2nd edit.)