形態特徵

• Rhizomes short, erect; rhizomes and stipes covered with brown lanceolate scales.
• Fronds bipinnate, the stipes stout, 15-20 cm long; lateral pinnae sessile, 8-15 cm long, 15-20 mm wide, widely spreading, acuminate at apex; lower pinnae often shortened and somewhat deflexed; basiscopic pinnules not longer than acroscopic ones; stipe, rachis and underside of rachillae densely covered with brown lanceolate scales, which are progressively smaller from base to apex; rachis with a groove on upper side and not open to rachilla grooves; brown ctenitis hairs abundant along upperside of rachillae.
• Sori only borne near apex of pinnules, 2 or 3 on each side of the end of the costa; indusia of the dryopteroid type.

分布

• 台灣 : Growing in the montane forests at medium altitude.
• 世界 : West China, East Himalaya, India, Nepal.

引證標本

ILAN: Taipingshan, Chuang et al. 4771. HSINCHU: Kuanwu, Kuo 3491, Shieh & Tsai 2148. TAICHUNG: Tahsueshan, Kuoh 4; Anmashan, Liu et al. s. n. 1957. NANTOU: Hoshe, Kao 3903, Jenlun, Shieh & Tsai 1204. CHIAYI: Mt. Alishan, Kao 7572, DeVol 3368. KAOHSIUNG: Shihshan, Hsu s. n. 1972; Tienchih, Shieh & Tsai 823. PINGTUNG: Peitawushan, Tsai 3043. TAITUNG: Ramaramani, Kao 6053. HUALIEN: Lanshan, Shieh & Tsai 1624; Hsiukuruan, Shieh & Tsai 1719.