| This species occurs primarily in alluvial fan sage scrub (AFSS) which is a distinct habitat type of the coastal sage scrub (CSS) community. The AFSS habitats are confined to river and floodplains of southern San Bernardino County, The current distribution of the SBKR in San Bernardino County is San Ana Wash, Cajon and Lytle Creek, Plunge Creek, City Creeks, and area west of Rialto Drainage near the Jurupa Hills. The SBKR is a federally listed endangered species and a State sensitive species.
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