形態特徵

• Main stems erect, decumbent at base, 12-35 cm tall, bearing long rhizopores; branches alternate, 8-10 mm wide.
• Leaves dimorphic, lateral leaves oblong, unequal-sided, pointing outwards, the margins almost entire on abaxial side, ciliate on adaxial side; median leaves inbricating, ovate, nearly equal-sided, aristate, pointing upwards; axillary leaves equal-sided, ovate, ciliate.
• Strobili borne on tips and sides of the lateral branches, 5-12 mm lng; sporophylls monomorphic, ovate, aristate, keeled, the margins ciliate.

分布

• 台灣 : Growing on the montane forest floors at low and medium altitude throughout the Island.
• 世界 : China, India, Vietnam, Indo-China, Japan, Okinawa, the Ryukyus and Malaya.

引證標本

TAIPEI: Chihsingshan, DeVol 9018; Tatungshan, Kao 6713. ILAN: Tayuanshan, Kao 6084; Chilanshan, Tsai 12639. TAOYUAN: Fuhsing, Tsai 10316. MIAOLI: Yangmeishan, Kao 3598. TAICHUNG: Anmashan, Shieh & Tsai 3353; Lishan, Feung 303. NANTOU:Chitou, Kao 6758; Kuantaochi, Yang 193. CHIAYI: Mt. Alishan, Chao 121; Tulishan, Tsann 17. TAINAN: Kuantzuling, Tsai 9513. KAOHSIUNG: Shanping, Huang 4909. PINGTUNG: Chingshuiyin, Shieh & Tsai 6841*; Nanjenshan, Kao 7322. TAITUNG: Wushan, Hosakawa 5346; Is. Lanyu, Huang & Kao 5461. HUALIEN: Taroko, Keng 2529; Kueiling, Shieh & Chen s. n. 1968.

參考文獻

• TSAI, JINN-LAI and SHIEH, WANG-CHUENG. 1994. Flora of Taiwan, second edition 1: 48. (Fl. Taiwan 2nd edit.)