forget-me-not
Concise Oxford English Dictionary © 2008 Oxford University Press:
forget-me-not
▶noun a low-growing plant of the borage family with bright blue flowers. [Myosotis scorpioides and other species.]
– origin C16: translating the OFr. name ne m'oubliez mye; said to ensure that the wearer of the flower would never be forgotten by a lover.
'forget-me-not' also found in these Oxford entries:
