Definition of Moonflower

Moonflower: Several plants species with large fragrant flowers that bloom at dusk are referred to as moonflowers. A common name for several night-blooming plants, some with white flowers, include: Night blooming cereus species, including Hylocereus, Datura species, including D. inoxia, Ipomoea species previously separated in Calonyction, including I. alba, and Mentzelia species, including M. pumila..