形態特徵

• Rhizome covered with stipe bases.
• Stipes about 35 cm long, usually chestnut brown towards base, scales pale brown, ovate, thin, scattered on basal part, absent from upper stipe and rachs; laminae deltoid or pentagonal, tripinnate, 35 cm long, 25-30 cm wide; pinnae opposite, first basiscopic pinnule of lowest pinna much enlarged; pinnules serrate to lobed, with a sharp tooth in the sinuses between the lobes.
• All pinnae soriferous; indusia pale brown.

分布

• 世界 : China, Himalayas, India, Burma, Malay Peninsula, Japan, the Ryukyus, the Philippines, Malay Isls. and New Guinea.

引證標本

TAIPEI: Yangmingshan, Kuo 1198; Hsintien, Do 820. ILAN: Nanhutashan, Kuo 5049. TAOYUAN: Peichatienshan, Kuo 2693. HSINCHU: Kuanwu, Kuo 3481; Yuanyanhu, Kuo 1504. TAICHUNG: Tungshih, Simozawa 336; Anmashan, Liu et al. 167. NANTOU: Chitou, Huang 1432. CHIAYI: Mt. Alishan, Kao 7475. KAOHSIUNG: Paolai, Kuo 2751; Shihshan, Kuo 2448. PINGTUNG: Cross Island Highway, Huang 6577. HUALIEN: Tarokotashan, Suzuki 97646.

參考文獻

• SHIEH,WANG-CHUENG, DEVOL CHARLES E. and KUO, CHEN-MENG, Flora of Taiwan, second edition 1: 327. 1994.  (Fl. Taiwan 2nd edit.)