Lonicera japonica, known as golden-and-silver honeysuckle or Japanese honeysuckle in English, suikazura (スイカズラ/吸い葛 or 忍冬) in Japanese, jinyinhua (金银花) or rendongteng (忍冬藤) in Chinese, indongdeonggul (인동덩굴) in Korean, and kim ngân hoa in Vietnamese, is a species of honeysuckle native to eastern Asia including China, Japan and Korea. It is a twining vine able to climb up to 10 m (33 ft) high or more in trees, with opposite, simple oval