Native to tropical and subtropical areas of the Americas, Passion Flower (Passiflora incarnata) is also called May-pops. It was discovered in 1569 by spanish explorers in Peru, who saw the flowers as symbolic of the passion of Christ, and hence a sign of Christ's approval for their efforts. Today, it is often dispayed as a symbol of faith. The term "passion flower" denotes many of the roughly 400 species of the genus Passiflora, which is made up primarily of vines. The flower is an attractive climber and regarded as one of the most graceful and elegant plants that can be used for covering trellises and arbors. Used by early explorers , Indians and settlers alike, today Passion Flower is often employed for its soothing calming properties.