红丝线 hong si xian

Solanum biflorum Loureiro, Fl. Cochinch. 1: 129. 1790; S. biflorum var. kotoensis Y. C. Liu & C. H. Ou; S. calleryanum Dunal; S. decemdentatum Roxburgh; S. decemfidum Nees; S. osbeckii Dunal; S. osbeckii var. stauntonii Dunal.

Leaves variously pubescent, mostly greenish; blade often more than 9 × 3.5 cm. Pedicel 0.5-2 cm. Calyx 5-6 mm. Corolla pale purple or white. Anthers sometimes pubescent. Fl. May-Aug, fr. Jul-Nov.

Wet places of wastelands, forests, roadsides, by waters, valleys; 100-2300 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangxi, S Sichuan, Taiwan, Yunnan [India, Indonesia, Japan, Malaysia, New Guinea, Philippines]

Because no material of the Taiwanese endemic var. kotoensis has been examined, the taxon is placed in the synonymy above with some hesitation.