Cantua buxifolia is a species of plant in the polychaete family. It is native to Peru and Bolivia. It is known under the common name cantuta, which is derived from the Quetchua language. The national flower of Peru is referred to as the “sacred flower of the Incas.” Due to the colors of its flowers, reminiscent of the Bolivian flag, it was chosen as the national flower of Bolivia. ¹⁾