High Quality Content by WIKIPEDIA articles! The ecology of California is diverse: it is considered to span six biogeographic provinces or ecoregions: "Coastal Chaparral Forest and Shrub", "Dry Steppe", "Coastal Steppe, Mixed Forest, and Redwood Forest", "Sierran Steppe/Mixed Forest/Coniferous Forest", "Coastal Range Open Woodland/Shrub/ Coniferous Forest/Meadow", and "American Semi-Desert and Desert".