Yucca is traditional favorite of Native Americans that grows primarily in the dry coastal canyons of California and the inland deserts of the western United States. Older scholars considered it a member of Agavaceae, while it is most currently placed in the Lily family. The one thing everyone agrees on is that yucca is not a cactus. The various species differ primarily by their size, with Y. brevifolia, the Joshua tree, growing up to 20 feet tall. Most species including the more common Y. schidigera, the Mojave yucca grow as a 1 to 6 foot high clump with sharp and swordlike leaves and beautiful cream colored flowers. It is this species the is the primary on marketed by the natural products industry.