forget-me-not
/fəˈgetmɪnɒt/noun
1- a low-growing plant of the borage family, which typically has blue flowers and is a popular ornamental勿忘（我）草。
1.1
- Myosotis and other genera, family Boraginaceae: several species, in particular the common European M. scorpioides, whose bright blue flowers have a yellow centre.勿忘草属及其他属, 紫草科：数种, 尤指开鲜艳蓝花、有黄色花心的常见欧洲蝎尾勿忘草。
词源
mid 16th cent.: translating the Old French name ne m'oubliez mye; said to have the virtue of ensuring that the wearer of the flower would never be forgotten by a lover.