The bougainvillea is a climbing plant that is well-known for its spectacular flowers. In warm, frost-free climates, it flowers practically all year round, even in winter.
The two most common species are the Bouganvillea glabra and the Bouganvillea spectabilis.
What we commonly call the "flowers" of the bougainvillea, are botanically not flowers, but bracts. The bracts surround the true flower, which is tiny, white and of no ornamental value.