蔷薇属灌木

The dominant plants are sages (Lamiaceae) and evergreen oaks and, in drier areas, chamise (Adenostoma fasciculatum), manzanita (Arctostaphylos pungens), and species of Ceanothus.

优势种有薄荷属一，常绿橡，在干旱地区通常有蔷薇属灌，石兰科常绿灌以及某鼠李。