DistributionRead full entry
Range DescriptionThis species occurs in the Central Valley and bordering foothills of California and along the Coast Ranges (south of San Francisco Bay) in the USA, southward into north-western Baja California, Mexico. It is found from near sea level to 1,363m asl (Zeiner et al. (eds.) 1988, cited by Jennings and Hayes 1994), but usually below 910m asl (Stebbins 1985b).