magenta Bougainvillea flowers, a genus of thorny ornamental vines and bushes. The colorful parts are modified leaves called bracts, while the actual flowers are small and yellow or white. This species is Bougainvillea glabra (lesser bougainvillea) or Bougainvillea spectabilis. Tropical plants known for being drought-tolerant and fast-growing. Often grown as ornamental vines on trellises, fences, or as bushes.