The Mojave Desert Bioregion, one of four bioregions that converge on Tejon Ranch, represents Tejon’s southeastern edge along the Antelope Valley. This region is characterized by desert landscapes, predominantly vegetated by desert saltbush, pinyon-juniper, creosote bush and Joshua tree woodlands. The northernmost population of Joshua trees in California occurs on this portion of the Ranch as do some of the most brilliant and diverse springtime wildflower displays.