• 1. Northern Pacific Coastal/Cascade Mountain Forests
  • 2. Palouse
  • 3. Great Basin Desert
  • 4. Sierran Foothills/Alpine Vegetation
  • 5. California Grasslands, Chaparral, and Woodland
  • 6. Mojave and Sonoran Deserts
  • 7. Rocky Mountain Forests/Alpine Vegetation
  • 8. Central Prairies and Plains
  • 9. Eastern Deciduous Forests
  • 10. Boreal Forests
  • 11. Coastal Plain Forests
  • 12. Tropical

Map: Courtesy of Jane Marinelli