忍冬Lonicera japonica Thunb.

别名：鹭鸶花;二宝花;二色花藤;金钗股;金花;金藤花;二花秧;金银藤;灵通草;金银花藤;蜜桶藤;左转藤;左旋藤;毛金银花;老翁须;金钞股;二花藤;达邻－哈日苏;普西尾;土银花;银花;两宝藤;鹭鸶藤;银花秧;左缠藤;鸳鸯藤;银花藤;苏花;双花;双苞花;二苞花;银藤;通灵草;忍冬藤;二花;金银花;右旋藤;密桶草;忍冬草;忍冬花;茶叶花;Japanese honeysuckle;

科名：忍冬科 Caprifoliaceae

属名：忍冬属 Lonicera

《中国植物志》第72卷236页
  80. 忍冬（名医别录）　金银花（本草纲目），金银藤（江西铅山、云南楚雄），银藤（浙江临海、江苏），二色花藤（上海），二宝藤、右转藤（四川），子风藤（浙江丽水），蜜桷藤（江西铅山），鸳鸯藤（福建），老翁须（常用中草药图谱）
  Lonicera japonica Thunb. Fl. Jap. 89. 1784; 中药志 3: 36, 506, 彩图12. 1960; H. L. Li, Woody Fl. Taiwan 886. 1953; 中国高等植物图鉴 4: 297, 图6008. 1975; 全国中草药汇编, 上册 540, 图556. 1975; Lauener et Ferguson in Notes Bot. Gard. Edinb. 32(1): 99. 1972. ——Caprifolium Japonicum Dum. Cour. Bot. Cult. ed. 2, 7: 209. 1814. ——Nintooa japonica Sweet. Hort. Brit. ed. 2, 258. 1830. ——L. fauriei Levl. et Vant. in Fedde. Repert. Sp. Nov. 5: 100. 1908. ——L. japonaca Thunb. var. sempervillosa Hayara. Ic. Fl. Formos. 9: 47. 1920. ——T. shintenensis Hayata ibid. 48.

《Flora of China》 Vol. 19 (2011)
Lonicera japonica  Thunberg in Murray Syst. Veg., ed. 14. 216. 1784.
忍冬   ren dong
Climbers, semievergreen. Branches becoming hollow. Branches, petioles, and peduncles with dense, yellow-brown spreading stiff hairs, interspersed with long glandular hairs. Petiole 3-8 mm; leaf blade ovate or oblong to lanceolate, 3-8 × 1.5-4 cm, abaxially sparsely to densely hairy, adaxially hairy along veins, base rounded to subcordate, margin ciliate, occasionally sinuate, apex acute to acuminate. Flowers fragrant, paired and axillary toward apices of branchlets; peduncle 2-40 mm, shorter toward apex of branchlets; bracts leaflike, ovate to elliptic, 1-3 cm; bracteoles ca. 1 mm, pubescent, apex rounded or truncate and ciliate. Neighboring 2 ovaries free; ovary ca. 2 mm, glabrous. Calyx lobes triangular, ca. 1 mm, densely hairy abaxially and along margin, apex acute. Corolla bilabiate, white, becoming yellow, or purple outside and white inside, 3-5 cm, spreading hairy with interspersed long glandular hairs outside; tube 1.5-3 cm, not gibbous at base; upper lip irregularly 4-lobed, lobes 2-8 mm; lower lip recurved. Stamens and style glabrous, subequaling to exceeding corolla. Berries black when mature, glossy, globose, 6-7 mm in diam.; seeds brown, ovoid or ellipsoid, ca. 3 mm, shallowly pitted. Fl. Apr-Jun, fr. Oct-Nov. 2n = 18*.
Scrub, sparse forests, mountain slopes, stony places, roadsides; (800-)1500 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, Korea; widely cultivated in SE Asia; introduced and invasive in North America].