Bougainvillea is a climbing plant, well known for its spectacular flowers. In warm, frost-free climates it flowers practically all year round, even in winter.
The two commonest species are Bougainvillea Glabra (also known as Paper Bougainvillea, or Lesser Bougainvillea) and Bougainvillea Spectabilis (also known as Greater Bougainvillea).
What we call the "flowers" of the bougainvillea, are not actually flowers in the botanical sense, but, rather, a bract (specialised leaf). The bracts surround the real flower, which is small, white and of little ornamental value.