here. Apparently the flowers open white at night to attract pollinating moths and turn red to attract daytime pollinators. The angle of the flower also changes.
New growth will reach out, twine around, and climb up anything within reach. I've had one as high as 50 feet up in the top of a Camphor tree. Others have reported heights up to 70 feet.
Quisqualis indica is sometimes known as Rangoon Creeper. It is native to Africa, Indonesia, the Philippines, and Malaysia. It is hardy for USDA Zones 9-11.
One other interesting feature is that as the leaves age, the petioles thicken and curve downward. After the leaf drops, a thorn-like spur remains.