Pantropical climber having white fragrant nocturnal flowers WordNet 3.0 & Open English WordNet

Ipomoea alba, sometimes called the tropical white morning-glory, moonflower or moon vine, is a species of night-blooming morning glory, native to tropical and subtropical regions of North and South America, from Argentina to northern Mexico, Arizona, Florida and the West Indies. Wikipedia

The moonflower or moon vine, a flowering plant species native to tropical and subtropical regions of the New World, from northern Argentina to Mexico and Florida. Wikipedia Disambiguation

Any of several vines of the genus Ipomoea, especially Ipomoea alba. Wiktionary