Sensitive Plant, Touch-me-not (Mimosa pudica): Its fern-like leaves close up and droop when touched, usually re-opening within minutes. It has prickly stems and small, fluffy, ball shaped pink flowers in summer.
Great Bougainvillea (Bougainvillea spectabilis): Named after Louis de Bougainvillea, a French navigator who came across it in Brazil during the 18th century. Flowers arise in leaf axils, in clusters of threes, each flower with a purple, red, pink, or orange bract beneath, up to 3-4 cm long. Sepal cup is tubular with 5 sepals, up to 2 cm long, tube the same color as the bracts, with white sepals, 3 mm long. Real petals are absent. Fruit is an achene, elongate, 5-ribbed.