Yuca is the name by which the indigenous population of the place of origin of this plant, the Caribbean and Central America, actually called the Spanish bayonet - Manihot esculenta- attributed to this genus Yucca by confusion in the first consignments of plants from the New World. The term seems to refer specifically to the name Native Americans gave to be cassava flour, which the Spaniards who came to America during the sixteenth century mistakenly thought they did with Spanish bayonet. It is a genus currently very hybridized and naturalized in temperate Europe, the Spanish bayonets are also called, since the seventeenth century Spanish dagger or bayonet for their pointy and sharp blades. From the 19th century we are aware of its use in gardens. A peculiarity of the yucca is that they are pollinated by a single type of moth of the genus Tegeticula, the 'yucca moth', especially the Tegeticula yuccasella. This situation, in which species depends solely on other to exist and in which the disappearance of one would imply the possible disappearance of the other, is what is known as mutualism in biology. The relationship between this genus of moths and yuccas are a clear example of this symbiosis between plant and animal kingdoms in nature.