生活型

shrub

形態特徵

• Perennial subshrubs; stems woody at base, glabrous, erect or ascending, usually with galls on lower part of internodes.
• Leaves subequally to unequally paired, membranaceous to chartaceous, glabrous, ovate, narrowly elliptic, widely elliptic to lanceolate, 4-22 cm long, 2-8.5 cm wide, apex acuminate to long acuminate, margins serrate to serrulate, base obtuse to rounded, 3-nerved; petioles 1-10 cm long; stipules connate at base, broadly triangular, veinless.
• Inflorescences usually panicles of glomerules; male Inflorescences to 22 cm long, peduncles to 13 cm long; female Inflorescences to 16.5 cm long. Male flowers slightly laterally compressed, obovoid or obdeltoid; sepals 4, equal, connate about halfway, valvate, somewhat short corniculate. Sepals of female flowers 3, connate, one unequal; staminodes 3; ovary ovoid.
• Achenes slightly tuberculate, laterally compressed, asymmetrical ovoid to widely ovoid.

分布

• 台灣 : ravines and shady, moist forest floors at medium altitudes throughout the island. Fertile plants do not found in March and June.
• 世界 : India, Sri Lanka, Java, Vietnam, and S. mainland China.

引證標本

TAIPEI: Wulai, Kawakami & Sasaki s. n. 1913. ILAN: Fushan, Shih 2830; Nanshan-tsun, Shih 2871. TAOYUAN: Rarashan, Chen s. n. in 1994, Shih 3229. TAICHUNG: Dergi Dam, Shih 2989. NANTOU: Kwankao to Tongpu, Huang, Hsieh & Lin 8623; Meifong, Shih 2940. CHIAYI: Alishan Highway, Shih 2957. KAOHSIUNG: Weichinchi Bridge, Shih 2618; Laolung Logging Trail, Shih 2638. PINGTUNG: Ali, Chen s. n. in 1993, Shih 2722. TAITUNG: Chihpen Logging Trail, Shih 3276; Lichai Logging Trail, Shih 3355. HUALIEN: Reshui Logging Trail, Yang & Chen s. n. in 1993; Sakatang Logging Trail, Shih 3080.

參考文獻

• YANG, YUEN-PO, SHIH, BING-LING and LIU, HO-YIH, Flora of Taiwan, second edition 2: 242. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)