木龙葵 mu long kui

Herbs annual or short-lived perennial, glabrescent or sparingly pubescent. Stems erect, often angular; branchlets pubescent, glabrescent. Petiole 4-7 mm; leaf blade broadly ovate, rhomboid, or rounded, often broad, 2-10(-12) × 2-6 (-7) cm, glabrescent or pubescent, base cuneate, decurrent, margin entire, sinuate, or sparingly dentate, apex acute. Inflorescences extra-axillary, subumbellate; peduncle unbranched, 1-2.5 cm. Pedicel 5-10 mm, pubescent. Calyx cup-shaped, ca. 2 mm in diam., puberulent abaxially; lobes deltate-ovate, ca. 0.5 mm, ciliate. Corolla white, ca. 1 cm in diam.; lobes ovate, 2.5-5 mm, pubescent abaxially. Filaments short; anthers oblong, 2-4 mm. Style ca. 3 mm, pilose. Fruiting pedicel deflexed; fruiting calyx reflexed. Berry purplish black, somewhat shiny, globose, 5-10 mm in diam. Seeds discoid, 0.8-1 mm in diam. Fl. and fr. throughout the year.

Near roads, humid places in ravines and valleys; 200-2700 m. Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan, Taiwan, Xizang, Yunnan, cultivated in Zhejiang (Hangzhou Shi) [Africa]

This species was treated in FRPS as Solanum nigrum.