Annual herb, to 50 cm tall, sparsely pubescent; stems much branched. Leaves ovate to elliptic, 3-6 cm long, 2-4 cm wide, apically acuminate or acute, basally cuneate or broadly cuneate, entire or dentate, glabrate; petiole 1-5 cm long. Pedicel 5-12 mm long. Flower with calyx divided about halfway, 4-5 mm long, the lobes deltoid to broadly lanceolate, ciliate; corolla pale yellow or white, spotted and pubescent in the throat, 6-8 mm long; anthers bluish, sometimes fading yellow, 1.5-2.5 mm long. Berry 1.2 cm across, loosely enveloped in the fruiting calyx; fruiting pedicel 10-25 mm long; fruiting calyx ovoid, 1.5-2.5 cm across, 10 ribbed; seeds discoid, 1.5-1.5-1.7 mm across.
TAIPEI: Pinghsi, Shihfen Waterfall, Peng 15180. ILAN: Wuchieh, Wang & Lin 1500. HSINCHU: Wufeng, Taoshan Village, Peng 8394. MIAOLI: Chunan, Lin 600. TAICHUNG: Songhou, Kao 9258; Kukuan, Leu 1515. NANTOU: Tungpu to Hoshe,, Huang 3397. CHANGHUA: Fengyuan, Hampao, Yen 10206. CHIAYI: Shuishang, Lai et al. TAINAN: Jente Village, Peng 7048; Nanhsi, Tsenwen Dam, Peng 13398. KAOHSIUNG: Apes Hill, Takow (Henry) 1146; Shanping, Wang 848. PINGTUNG: Hsinpei, D’Arcy 19286, South Cape, Henry 280. TAITUNG: Lanyu.Is., Shen 513.
Native of the Americas, widely distributed in tropical and temperate regions. Taiwan, common in lowland areas of disturbance and cropland. Flowering and fruiting throughout the year.
