形態特徵

• Rhizome short, ascending; scales lanceolate, denticulate, dark brown to black. stipes stramineous, approximate, scaly throughout, densely so at base, 15-40 cm long; lamina bipinnate to tripinnatifid; pinnae petiolate, subopposite; basal pinnae with first pinnules about 1 cm from rachis, all upper pinnae with first pinnules close to rachis; rachis and rachillae stramineous, bearing scattered linear-lanceolate brown scales; pinnules sessile, ovate-oblong, margins cut into rounded entire lobes.
• Sori linear, curved, borne medial on veinlets near costa, single; indusia thin, brown, nearly entire or somewhat erose, opening towards costa.

分布

• 世界 : North India, China, Japan.

引證標本

ILAN: Nanhutashan, Kuo 5088. HSINCHU: Kuanwu, Tsai 19203.

參考文獻

• SHIEH, WANG-CHUENG, DEVOL, CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 443. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)