moonflower

noun

1. a plant, Ipomoea alba, of the morning glory family, having fragrant white flowers that bloom at night.

noun

1. any of several night-blooming convolvulaceous plants, esp the white-flowered Calonyction (or Ipomoea) aculeatum
2. Also called: angels’ tears a Mexican solanaceous plant, Datura suaveolens, planted in the tropics for its white night-blooming flowers