the plant community northern coastal scrub also exists in the carbonera creek catchment basin. this community is scattered throughout the basin, typically situated on windy, exposed sites with shallow, rocky soils. the community is dominated by california sagebrush ("artemisia californica"); toyon ("heteromeles arbutifolia"); "coyote brush ("baccharis pilularis"; california yerba santa ("eriodictyon californicum"); and manzanita (arctostaphylos spp.)