abstract:Ipomoea alba, sometimes called the moonflower (but not to be confused with the other species also called moonflower) or moon vine, is a species of night-blooming morning glory, native to tropical and subtropical regions of the New World, from northern Argentina north to Mexico and Florida. Though formerly classified as genus Calonyction, species aculeatum, it is now properly assigned to genus Ipomoea, subgenus Quamoclit, section Calonyction.