👉 Bougainvillea is a genus of flowering plants in the family Asteraceae, native to several tropical and subtropical regions including South America. The genus contains around 20 species commonly used as ornamental or culinary plants. Some common names for these plants include: 1. Bougainvillea japonica - native to Japan 2. Bougainvillea japonica var. 'Daisy' - found in the tropical and subtropical regions of Asia, including Australia 3.