The Joshua tree (Yucca brevifolia) is a monocotyledonous tree native to southwestern North America, in the states of California, Arizona, Utah and Nevada. Confined mostly to the Mojave Desert between 400-1,800 m (2,000-6,000 feet), they thrive in the open grasslands of Queen Valley and Lost Horse Valley in Joshua Tree National Park.
The Joshua Tree is the fifth studio album by Irish rock band U2, released on March 9, 1987 on Island Records. It was produced and engineered by Brian Eno and Daniel Lanois. The Joshua Tree won the Album of the Year award at the Grammy Awards of 1988.