Chaparral
Like that of deserts, the distribution of chaparral reflects a narrow range of climate conditions and occurs on the western edge of continents from 32° to 40° latitude north and south of the equator. Precipitation ranges from 30 to 75 cm per year, usually falling in a period of 2 to 4 months. Typical plants are herbs that die and reseed themselves every year, evergreen shrubs, and small trees. Olives, eucalyptus, acacia, and oaks are typical woody species, always drought resistant and often adapted to withstand fire. Limited precipitation means soils are not rich in organic materials.