This is a list of terrestrial ecoregions of the 50 United States and Puerto Rico, as defined by the World Wildlife Fund:
Tropical and subtropical moist broadleaf forests
- Hawaiian tropical rainforests
- Puerto Rican moist forests
- South Florida rocklands
Tropical and subtropical dry broadleaf forests
Tropical and subtropical coniferous forests
Temperate broadleaf and mixed forests
- Allegheny Highlands forests
- Appalachian mixed mesophytic forests
- Appalachian-Blue Ridge forests
- Central U.S. hardwood forests
- East Central Texas forests
- Eastern forest-boreal transition
- Eastern Great Lakes lowland forests
- Mississippi lowland forests
- New England-Acadian forests
- Northeastern coastal forests
- Ozark Mountain forests
- Southeastern mixed forests
- Southern Great Lakes forests
- Upper Midwest forest-savanna transition
- Western Great Lakes forests
- Willamette Valley forests
Temperate coniferous forests
- Arizona Mountains forests
- Atlantic coastal pine barrens
- Blue Mountains forests
- British Columbia mainland coastal forests
- Cascade Mountains leeward forests
- Central and Southern Cascades forests
- Central Pacific coastal forests
- Colorado Rockies forests
- Eastern Cascades forests
- Florida scrub
- Great Basin montane forests
- Klamath-Siskiyou forests
- Middle Atlantic coastal forests
- North Central Rockies forests
- Northern California coastal forests
- Northern Pacific coastal forests
- Okanogan dry forests
- Piney Woods forests
- Puget lowland forests
- Sierra Nevada forests
- South Central Rockies forests
- Southeastern conifer forests
- Wasatch and Uinta montane forests
Boreal forests/taiga
- Alaska Peninsula montane taiga
- Central Canadian Shield forests
- Cook Inlet taiga
- Copper Plateau taiga
- Interior Alaska-Yukon lowland taiga
- Midwestern Canadian Shield forests
Tropical and subtropical grasslands, savannas, and shrublands
- Hawaiian tropical high shrublands
- Hawaiian tropical low shrublands
- Northwestern Hawaii scrub
- Western Gulf coastal grasslands
Temperate grasslands, savannas, and shrublands
- California Central Valley grasslands
- Canadian aspen forests and parklands
- Central and Southern mixed grasslands
- Central forest-grasslands transition
- Central tall grasslands
- Edwards Plateau savanna
- Flint Hills tall grasslands
- Montana valley and foothill grasslands
- Nebraska Sand Hills mixed grasslands
- Northern mixed grasslands
- Northern short grasslands
- Northern tall grasslands
- Palouse grasslands
- Texas blackland prairies
- Western short grasslands
Flooded grasslands and savannas
Tundra
- Alaska-St. Elias Range tundra
- Aleutian Islands tundra
- Arctic coastal tundra
- Arctic foothills tundra
- Beringia lowland tundra
- Beringia upland tundra
- Brooks-British Range tundra
- Interior Yukon-Alaska alpine tundra
- Ogilvie-MacKenzie alpine tundra
- Pacific Coastal Mountain icefields and tundra
Mediterranean forests, woodlands, and scrub
Deserts and xeric shrublands
- Chihuahuan desert
- Colorado Plateau shrublands
- Great Basin shrub steppe
- Mojave desert
- Snake-Columbia shrub steppe
- Sonoran desert
- Tamaulipan mezquital
- Wyoming Basin shrub steppe
See also
References
- Ricketts, Taylor H; Eric Dinerstein; David M. Olson; Colby J. Loucks; et al. (1999). Terrestrial Ecoregions of North America: a Conservation Assessment. Island Press; Washington, DC.
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