形態特徵

• Rhizome ascending, clothed with dark brown scales.
• Stipes stramineous, muricate, those of sterile fronds 3-10, of fertile fronds 5-17 cm long; sterile lamina chartaceous, glabrous, with a terminal pinna and 2-4 lateral pinnae; pinnae linear, attenuate-acuminate, minutely serrate; terminal pinna 10-17 cm long, lateral pinnae 5-10 cm long.
• Fertile pinnae much longer and narrower.

引證標本

NANTOU: Between Patungkwand and Tungpu, Tagawa 478. CHIAYI: Mt. Alishan, Faurie 603.

參考文獻

• SHIEH, WANG-CHUENG, Flora of Taiwan, second edition 1: 223. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)