Sierra Juárez contains several coniferous species; the most abundant are: Pinus jeffreyi, Pinus ponderosa, Pinus cembroide, Pinus quadrifolia, Pinus monophylla, Juniperus, Arctostaphylos drupacea, Artemisa ludoviciana, and Adenostoma esparcifolium. The flora shares many species with the Laguna Mountains and San Jacinto Mountains in southwest California. The lower elevations of the Sierra Juárez are characterized by chaparral and desert shrub.