Calocedrus decurrens
The higher elevations of the Sierra de Juárez, with those of the Sierra San Pedro Mártir, are in the Sierra Juarez and San Pedro Martir pine-oak forests ecoregion. Pine species include Jeffrey pine ("Pinus jeffreyi"), Parry Piñon pine ("Pinus monophylla"), lodgepole pine ("Pinus contorta"), sugar pine ("Pinus lambertini"). Other evergreen species include white fir ("Abies concolor") and incense cedar ("Calocedrus decurrens"). Sagebrush ("Artemisia tridentata") is a common shrub of the understory. The coniferous forests of the two mountain ranges comprise a Sky island--an elevated temperate forest surrounded by lower, more arid lands.