生活型

vine

形態特徵

• Scandent perennial woody vines. Stem sulcate, densely velutinous.
• Leaves ternate, pinnate or biternate, chartaceous; petioles tendril-like, 4.2-9.7 cm long. Leaflets 3-9, 2.3-13.1 cm long, 1.1-10.1 cm wide, ovate, deltoid or elliptic; apex acuminate; base cordate, obtuse or cuneate; 3-5-lobed; margin coarsely serrate; sparsely velutinous or glabrous on adaxial surface, velutinous on abaxial surface; main veins 3 to 5, nerves flat or sunken on adaxial side, elevated on abaxial side; petiolulate.
• Inflorescences panicles of cymes or cymes, axillary; pedicels velutinous, trichotomously branched; bracts and bracteoles leaf-like, elliptic or lanceolate, chartaceous, sparsely velutinous on adaxial side, densely velutinous on abaxial side. Flowers 15-25 mm diam., yellowish-green or pale yellow, spreading. Sepals 4, 9-15 mm long, 3-5 mm wide, obovate-oblong or obovate-lanceolate; apex acute; base cuneate or obtuse; glabrous or sparsely velutinous inside, densely villose outside. Stamens numerous, 4-8 mm long, glabrous, centripetal, inner ones shorter; anthers narrowly elliptic or linear, dehiscence lateral, longitudinal; connective shorter than or equal to pollen sacs; filaments linear and flat
• Carpels numerous, golden sericeous. Fruits 1.6-3.8 cm long; achenes 2.5-5 mm long, ovate-elliptic or elliptic, convex on both sides, dark brown or nearly black, pale yellow velutinous; style with pale yellow hairs bearded.

分布

• 台灣 : open land, stream sides and forest margins throughout the island and on adjacent islands, i. e. Lanyu, Ludao and Kueishandao, from sea level to about 2,500 m.
• 世界 : Himalayan region, mainland China(Tibet?).

引證標本

TAIPEI: NTU campus, Yang 140. ILAN: Nanshan, Yamazaki et al. 915. TAOYUAN: Tsatienshan, Mori s. n. 1909. HSINCHU: Matalahsi, Yang 2427. MIAOLI: Taiko, Kawakami, Hayata & Mori 73(TI!, TAIF!). TAICHUNG: Lishan, Yang 4068. NANTOU: Hsitou, Yang 149. CHIAYI: Alishan, Yang 3085. TAINAN: Kantoushan, Peng 7088. KAOHSIUNG: Likuan, Yang 3125. PINGTUNG: Gankou, Yang et al. 4355. TAITUNG: Lanyu Isl., Yang et al. 3892; Ludao Isl., Huang 7010. HUALIEN: Hualien, Liu et al. 1794.

引用文獻

• YANG, T. Y. ALECK and HUANG, TSENG-CHIENG, Flora of Taiwan, second edition 2: 524. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)