HabitatRead full entry
Comments: E. californica grows naturally in open, well drained areas, in grasslands in deserts, and from valleys to foothills (U.S. Forest Service 1988, Hickman 1993). However, because E. californica is widely cultivated and used in reclamation plantings, it may occur outside of these habitats (Welsh et al. 1993, Gleason and Cronquist 1963).
Subspecies mexicana is known from limestone slopes of the Franklin Mountains near El Paso, Texas (Correll and Johnston 1970), rocky slopes and mesas in westcentral to southwestern New Mexico (Martin and Hutchins 1980), plains and mesas through most of Arizona (Kearney and Peebles 1960), and creosote bush communities in southwest Utah (Albee et al. 1988).