From Longman Dictionary of Contemporary Englishmorning gloryˌmorning ˈglory / $ ˈ.. ˌ../ noun [countable, uncountable] HBPDLGa plant that has white, blue, or pink flowers that open in the morning and close in late afternoon
Examples from the Corpus
morning glory• Ivy, foxglove, columbine, morning glory, holly, laurel ... suddenly they all have a sinister aspect. 