flowers of an hour

plural of flower-of-an-hour

/ˈflaʊərz əv ən ˈaʊər/
noun
  1. A small annual plant with short-lived, hibiscus-like flowers that bloom for only a few hours, native to Europe and Asia but naturalized in other regions.
    • We spotted a patch of flowers-of-an-hour growing wild along the roadside.
    • The delicate petals of the flowers-of-an-hour remind me of tiny hibiscus blooms.
    • The flowers-of-an-hour in my garden only open in the morning and wilt by noon.
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