紫金牛 zi jin niu

Bladhia japonica Thunberg, Nov. Gen. Pl. 1: 7. 1792; Tinus japonica (Thunberg) Kuntze.

Subshrubs stoloniferous. Stems 20-30(-40) cm, minutely puberulent when young, glabrescent. Leaves opposite or subwhorled; petiole 6-10 mm, minutely puberulent; leaf blade elliptic to elliptic-obovate, or elliptic-lanceolate, 4-7 × 1.5-4 cm, papery to subleathery, base cuneate, margin serrulate, ± punctate, apex acute; lateral veins 5-8 on each side of midrib, veinlets prominently reticulate. Inflorescences axillary or subterminal, subumbellate, 3-5-flowered, puberulent; peduncle ca. 5 mm, slender; bracts lanceolate, ca. 1 mm, puberulent or ciliate. Flowers pink or white, 5(or 6)-merous, 4(-5) mm. Pedicel 7-10 mm, usually curved, puberulent. Sepals ovate, to 1.5 mm, sometimes punctate, glabrous, margin ciliate, apex obtuse or acute to acuminate. Petals broadly ovate, 4(-5) mm, densely punctate, apex acute. Stamens shorter than petals; anthers lanceolate-ovate or ovate, punctate dorsally, apex acute. Ovary glabrous; ovules ca. 15, in 3 series. Fruit red becoming blackish, globose, 5-6 mm in diam., ± punctate, glabrous, smooth. Fl. Apr-Jun, fr. Nov-Jan.

Mixed forests or bamboo woods, hillsides, dark damp places; 0-1200 m. Anhui, Fujian, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, Korea]