| Description: | This woodland alliance is characterized by diagnostic tree species Pinus monophylla that forms an open to dense tree layer often with Juniperus osteosperma or, less frequently, Juniperus californica in southern California, with an understory that is characterized by shrubs that typically form an open to moderately dense layer. It is found on dry mountain slopes, foothills, plateaus and ridges of the Great Basin region and eastern foothills of the Sierra Nevada, and south in scattered locations throughout southern California, including desert mountain ranges. |