Ipomoea alba, known in English as tropical white morning glory, moonflower or moonvine, 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[3] and the West Indies.

[5] Ipomoea alba is a perennial, herbaceous liana growing to a height of 5–30 m (20–100 ft) tall with twining stems.

[15] The Mesoamerican civilizations used the Ipomoea alba morning glory to convert the latex from the Castilla elastica tree to produce bouncing rubber balls.

The sulfur in this morning glory served to cross-link the rubber, a process predating Charles Goodyear's discovery of vulcanization by at least 3,000 years.

Thus, at higher latitudes it often does not set buds and bloom until early autumn, when daylight length is once again near 12 hours.