The joshua tree is a branched, tree-like yucca plant. It is found in the southwestern part of the United States. Yuccas are shrubs of the lily family and all are native to desert regions. The joshua Tee may grow to be twenty-five feet high. It has short leaves and clustered, greenish-white, bell-shaped flowers. The female yucca moth spreads the pollen of this flower.
Although most species of the yucca are low shrubs, the joshua has become a large, picturesque tree. The Joshua Tree National Monument in California contains important collections of yucca trees and other rare