The Collaborative International Dictionary
Mirabilis uniflora
marvel of Peru \marvel of Peru\, marvel-of-Peru \marvel-of-Peru\ n. (Bot.) A common garden plant ( Mirabilis jalapa or Mirabilis uniflora) of North America having fragrant red or purple or yellow or white flowers that open in late afternoon; called also four-o'clock. See four-o'clock.
Syn: common four-o'clock, marvel of Peru, Mirabilis jalapa, Mirabilis uniflora.