1. Chaparral is a plant also known as Creosote Bush, Créosotier, Greasewood, Hediondilla, Jarilla, and Larreastat

2. Chaparral is an herb from the creosote bush, a desert shrub native to southern areas of the United States and northern regions of Mexico

3. These products are mixtures of many chemicals created by high-temperature treatment of beech and other woods, coal, or from the resin of the creosote bush.

4. Throughout the arid and semiarid regions of the southwestern United States, there is an Altitudinal zonation of vegetation with xerophytic desert scrub (commonly sagebrush, evergreen creosote bush, and evergreen blackbrush) at lower elevations, grading into mesophytic woodland (juniper, piñon pine, and live oak) at successively higher elevations (Figure 11.13).