Joshua Tree in Arizona Yucca brevifolia is a plant species belonging to the genus Yucca in the family Agavaceae. It is tree-like in habit, which is reflected in its common names: Joshua tree and Yucca palm and Tree yucca and Palm tree yucca.Gucker, Corey L. (2006). Yucca brevifolia. In: Fire Effects Information System, 1. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Accessed online: 2008, December 20. This monocotyledonous tree is native to southwestern North America in the states of California, Arizona, Utah and Nevada, where it is confined mostly to the Mojave Desert between 400-1,800 m (2,000-6,000 feet). It thrives in the open grasslands of Queen Valley and Lost Horse Valley in Joshua Tree National Park. There are two subspecies, including Yucca brevifolia ssp.jaegeriana Jaeger Joshua tree or Jaeger's Joshua tree or Pygmae Yucca. Other subspecies have been proposed but rejected by botanists, including one reduced to a form, Yucca brevifolia f. herbertii (Webber's Yucca or Herbert Joshua Tree).
Your changes have been saved.