生活型

shrub-liana

形態特徵

• Erect shrubs or suberect to scandent shrubby vines, 40-100 cm tall. Stems subterete, smooth, branching; internodes 2-2.5 cm long, 1.5-2.5 mm thick; branches 10-20 cm long.
• Leaf blade ovate to lanceolate-ovate, 2-3(-4) cm long, 1.5-2.5(-3) cm wide, base rounded to shallowly cordate, apex acute or acuminate, thick herbaceous to subcoriaceous, upper surface deep green, lower surface glaucous; costas 7 including a slender marginal pair, separate to base, ridged on lower surface, distinct on upper surface, veinlets distinct on lower surface, forming fine reticulations; petiole 0.8-1.2 cm long, jointed at apex, sheathing to 2/3, wings linear-lanceolate, membranaceous; tendrils none or to 1 cm long.
• Umbel solitary in 1 (or 2) lowest axil(s), both sexes 3-10-flowered, somewhat pendent at anthesis; peduncle 1.5-3 cm long; rays 1-1.5 cm long, filiform. Staminate tepals 2.5-3.5 mm long, reddish brown; tepals lanceolate- oblong, spreading. Stamens 6; filaments 0.5-0.8 mm long; anthers 0.25-0.3 mm long. Pistillate tepals 2-2.3 mm long, lanceolate-ovate. Ovary ovoid, 1 mm long; stamens 2 or 3, staminodia 3 or 4, needle-like.
• Berries globose, ca. 6 mm across, dark blue; seed 1, globose, castaneous, opaque.

物候

flowering in summer.

分布

• 台灣 : occasional in forests and on grassy hillsides, 1,800-3,200 m.
• 世界 : The Philippines (Luzon).

引證標本

ILAN: Chialoshan, Suzuki Tokio 7328; Mingchih, Hwang & Lin S3918; Sszuyuan, Kuoh 1798. HSINCHU: Tapachienshan Chang 22019. TAICHUNG: Hsiaohsuehsha Lin et al. 30032; Pahsienshan, Chuang et al. 2659. NANTOU: Chihtsaihu, Wang 1281, 1282; Patungkuan, Hu 25640, 25641; Tatachia, Leu et al. 1114; Yuanfeng, Wang 1308. CHIAYI: Alishan, Ou et al. S5117; Yuhshan, Huang et al. 14361. KAOHSIUNG: Kuanshan, Yang 338. PINGTUNG: Tahanshan, S. Suzuki 30034; Tawushan, Huang et al. 13677. HUALIEN: Patolushan, Wang 362.

引用文獻

• KOYAMA, Tetsuo, WANG, Kuang-Yuh, LU, Fu-Yuan, and OU, Chern-Hsiung, Flora of Taiwan, second edition 5: 120. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)