生活型

herb

形態特徵

• Annual herbs, to 1 m tall, evidently pubescent; stems erect or scandent, lanate, sometimes glandular, often with hairs 1–4 mm long, often glabrescent above.
• Leaves solitary or paired, ovate to elliptic or lanceolate, 2–5 (–6) cm long, 1.5–4 (–5) cm wide, apex acuminate or acute, base rounded or obtuse, entire, sinuate, or dentate, pubescent, more so beneath; petiole 1–4 cm long. Pedicel 3–7 mm long, glabrate or pubescent.
• Calyx divided about to middle, 3–6 mm long, lobes narrowly deltoid, pubescent or not; corolla yellow with conspicuous spots, pubescent in throat, spotted in throat, 7–12 mm long; anthers bluish, often twisting on opening, 1.5–2 mm long.
• Berry 10–15 mm across, loosely enveloped by calyx; fruiting pedicel less than half as long as calyx; fruiting calyx strongly 5-angled, 2–4 cm across; seeds yellowish, discoid, 1.2–1.5 mm across.
• This species can be recognized by its overall, often glandular, pubescence and its strongly 5-angled calyx.

分布

• 台灣 : in disturbed area in lowlands.
• 世界 : Native of the Americas, widely distributed in tropical and temperate regions.

引證標本

TAOYUAN: Chiaopanshan, Kao s.n. 1991. HSINCHU: Hengshan, Peng 13664. TAICHUNG: Hoping. Chingshan-Techi, Wang 2745; Kukuan, Leu 1515. PINGTUNG: Chachayalaishan, Wang 880; Kentin, Chuang 2199. TAITUNG: Lanyu Is., Yang 6578. HUALIEN: Antung Hot Spring, Liao 1619.

參考文獻

• William G. D'Arcy and Peng, Ching-I, Flora of Taiwan, second edition 4: 562. 1998.  (Fl. Taiwan 2nd edit.)