形態特徵

• Stipes slender, 3-13 cm long, stramineous, clothed with relatively large scales at base, scales lanceolate, brown, margin sparsely ciliate; rachis scales fibrillose, with simple linear cells.
• Lamina bipinnatifid, linear-lanceolate, 10-20 cm long, 1.5-2.6 cm broad, acuminate at apex, somewhat narrowed below, herbaceous; pinna 8-14 mm long, 4-7 mm broad, cut almost to rachilla, bristly serrate, very unequal at base, lower side being cut away, upper with much enlarged segments; small scales on undersurface of pinna hair-like, pale or nearly white.
• Sori solitary on each segment; indusia orbicular-reniform, excentrically peltate, margin irregularly crenate, membraneous.

分布

• 台灣 : at high altitude (2,500-3,000 m), rare.
• 世界 : North India, Nepal, Bhutan and West China.

引證標本

ILAN: Nanhutashan, Wang et al. 3762; Nanhutungfeng, Wang et al. 3689. NANTOU: Chilaishan, Wang 1579. KAOHSIUNG: Yako, Wang 2040. TAITUNG: Shiangyangshan, Wang 2091.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 350. 1994.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)