List of ecoregions in the United States (WWF)

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For an alternate classification system, see List of ecoregions in the United States (EPA).

This is a list of terrestrial ecoregions of the 50 United States, as defined by the World Wildlife Fund:

Ecozone Biome Ecoregion State
Nearctic Tropical and subtropical coniferous forests Sierra Madre Occidental pine-oak forests Arizona
Nearctic Tropical and subtropical coniferous forests Sierra Madre Occidental pine-oak forests New Mexico
Nearctic Tropical and subtropical coniferous forests Sierra Madre Oriental pine-oak forests Texas
Nearctic Temperate broadleaf and mixed forests Allegheny Highlands forests New Jersey
Nearctic Temperate broadleaf and mixed forests Allegheny Highlands forests New York
Nearctic Temperate broadleaf and mixed forests Allegheny Highlands forests Ohio
Nearctic Temperate broadleaf and mixed forests Allegheny Highlands forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Alabama
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Georgia
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Kentucky
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Maryland
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests North Carolina
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Ohio
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Tennessee
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests Virginia
Nearctic Temperate broadleaf and mixed forests Appalachian mixed mesophytic forests West Virginia
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Alabama
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Georgia
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Maryland
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests New Jersey
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests New York
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests North Carolina
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests South Carolina
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Tennessee
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests Virginia
Nearctic Temperate broadleaf and mixed forests Appalachian-Blue Ridge forests West Virginia
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Alabama
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Arkansas
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Illinois
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Indiana
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Kentucky
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Mississippi
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Missouri
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Ohio
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Oklahoma
Nearctic Temperate broadleaf and mixed forests Central U.S. hardwood forests Tennessee
Nearctic Temperate broadleaf and mixed forests East Central Texas forests Texas
Nearctic Temperate broadleaf and mixed forests Eastern Great Lakes lowland forests New York
Nearctic Temperate broadleaf and mixed forests Eastern Great Lakes lowland forests Vermont
Nearctic Temperate broadleaf and mixed forests Eastern forest-boreal transition New York
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Arkansas
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Illinois
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Kentucky
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Louisiana
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Mississippi
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Missouri
Nearctic Temperate broadleaf and mixed forests Mississippi lowland forests Tennessee
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests Connecticut
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests Maine
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests Massachusetts
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests New Hampshire
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests New York
Nearctic Temperate broadleaf and mixed forests New England-Acadian forests Vermont
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Connecticut
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Delaware
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Maine
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Maryland
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Massachusetts
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests New Hampshire
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests New Jersey
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests New York
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Rhode Island
Nearctic Temperate broadleaf and mixed forests Northeastern coastal forests Vermont
Nearctic Temperate broadleaf and mixed forests Ozark Mountain forests Arkansas
Nearctic Temperate broadleaf and mixed forests Ozark Mountain forests Oklahoma
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Alabama
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Georgia
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Louisiana
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Maryland
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Mississippi
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests North Carolina
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests South Carolina
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Tennessee
Nearctic Temperate broadleaf and mixed forests Southeastern mixed forests Virginia
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests Indiana
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests Michigan
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests New York
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests Ohio
Nearctic Temperate broadleaf and mixed forests Southern Great Lakes forests Pennsylvania
Nearctic Temperate broadleaf and mixed forests Upper Midwest forest-savanna transition Illinois
Nearctic Temperate broadleaf and mixed forests Upper Midwest forest-savanna transition Iowa
Nearctic Temperate broadleaf and mixed forests Upper Midwest forest-savanna transition Michigan
Nearctic Temperate broadleaf and mixed forests Upper Midwest forest-savanna transition Minnesota
Nearctic Temperate broadleaf and mixed forests Upper Midwest forest-savanna transition Wisconsin
Nearctic Temperate broadleaf and mixed forests Western Great Lakes forests Michigan
Nearctic Temperate broadleaf and mixed forests Western Great Lakes forests Minnesota
Nearctic Temperate broadleaf and mixed forests Western Great Lakes forests Wisconsin
Nearctic Temperate broadleaf and mixed forests Willamette Valley forests Oregon
Nearctic Temperate broadleaf and mixed forests Willamette Valley forests Washington
Nearctic Temperate coniferous forests Arizona Mountains forests Arizona
Nearctic Temperate coniferous forests Arizona Mountains forests New Mexico
Nearctic Temperate coniferous forests Arizona Mountains forests Texas
Nearctic Temperate coniferous forests Atlantic coastal pine barrens Massachusetts
Nearctic Temperate coniferous forests Atlantic coastal pine barrens New Jersey
Nearctic Temperate coniferous forests Atlantic coastal pine barrens New York
Nearctic Temperate coniferous forests Blue Mountains forests Idaho
Nearctic Temperate coniferous forests Blue Mountains forests Oregon
Nearctic Temperate coniferous forests Blue Mountains forests Washington
Nearctic Temperate coniferous forests British Columbia mainland coastal forests Washington
Nearctic Temperate coniferous forests Cascade Mountains leeward forests Washington
Nearctic Temperate coniferous forests Central Pacific coastal forests Oregon
Nearctic Temperate coniferous forests Central Pacific coastal forests Washington
Nearctic Temperate coniferous forests Central and Southern Cascades forests Oregon
Nearctic Temperate coniferous forests Central and Southern Cascades forests Washington
Nearctic Temperate coniferous forests Colorado Rockies forests Colorado
Nearctic Temperate coniferous forests Colorado Rockies forests New Mexico
Nearctic Temperate coniferous forests Colorado Rockies forests Wyoming
Nearctic Temperate coniferous forests Eastern Cascades forests California
Nearctic Temperate coniferous forests Eastern Cascades forests Oregon
Nearctic Temperate coniferous forests Eastern Cascades forests Washington
Nearctic Temperate coniferous forests Florida sand pine scrub Florida
Nearctic Temperate coniferous forests Great Basin montane forests California
Nearctic Temperate coniferous forests Great Basin montane forests Nevada
Nearctic Temperate coniferous forests Great Basin montane forests Oregon
Nearctic Temperate coniferous forests Klamath-Siskiyou forests California
Nearctic Temperate coniferous forests Klamath-Siskiyou forests Oregon
Nearctic Temperate coniferous forests Middle Atlantic coastal forests Delaware
Nearctic Temperate coniferous forests Middle Atlantic coastal forests Georgia
Nearctic Temperate coniferous forests Middle Atlantic coastal forests Maryland
Nearctic Temperate coniferous forests Middle Atlantic coastal forests North Carolina
Nearctic Temperate coniferous forests Middle Atlantic coastal forests South Carolina
Nearctic Temperate coniferous forests Middle Atlantic coastal forests Virginia
Nearctic Temperate coniferous forests North Central Rockies forests Idaho
Nearctic Temperate coniferous forests North Central Rockies forests Montana
Nearctic Temperate coniferous forests North Central Rockies forests Washington
Nearctic Temperate coniferous forests Northern California coastal forests California
Nearctic Temperate coniferous forests Northern California coastal forests Oregon
Nearctic Temperate coniferous forests Northern Pacific coastal forests Alaska
Nearctic Temperate coniferous forests Okanogan dry forests Washington
Nearctic Temperate coniferous forests Piney Woods forests Arkansas
Nearctic Temperate coniferous forests Piney Woods forests Louisiana
Nearctic Temperate coniferous forests Piney Woods forests Oklahoma
Nearctic Temperate coniferous forests Piney Woods forests Texas
Nearctic Temperate coniferous forests Puget lowland forests Washington
Nearctic Temperate coniferous forests Sierra Nevada forests California
Nearctic Temperate coniferous forests Sierra Nevada forests Nevada
Nearctic Temperate coniferous forests South Central Rockies forests Montana
Nearctic Temperate coniferous forests South Central Rockies forests South Dakota
Nearctic Temperate coniferous forests South Central Rockies forests Wyoming
Nearctic Temperate coniferous forests Southeastern conifer forests Alabama
Nearctic Temperate coniferous forests Southeastern conifer forests Florida
Nearctic Temperate coniferous forests Southeastern conifer forests Georgia
Nearctic Temperate coniferous forests Southeastern conifer forests Louisiana
Nearctic Temperate coniferous forests Southeastern conifer forests Mississippi
Nearctic Temperate coniferous forests Wasatch and Uinta montane forests Idaho
Nearctic Temperate coniferous forests Wasatch and Uinta montane forests Utah
Nearctic Temperate coniferous forests Wasatch and Uinta montane forests Wyoming
Nearctic Boreal forests/taiga Alaska Peninsula montane taiga Alaska
Nearctic Boreal forests/taiga Cook Inlet taiga Alaska
Nearctic Boreal forests/taiga Copper Plateau taiga Alaska
Nearctic Boreal forests/taiga Interior Alaska-Yukon lowland taiga Alaska
Nearctic Tropical and subtropical grasslands, savannas, and shrublands Western Gulf coastal grasslands Louisiana
Nearctic Tropical and subtropical grasslands, savannas, and shrublands Western Gulf coastal grasslands Mississippi
Nearctic Tropical and subtropical grasslands, savannas, and shrublands Western Gulf coastal grasslands Texas
Nearctic Temperate grasslands, savannas, and shrublands California Central Valley grasslands California
Nearctic Temperate grasslands, savannas, and shrublands Canadian aspen forests and parklands Minnesota
Nearctic Temperate grasslands, savannas, and shrublands Canadian aspen forests and parklands North Dakota
Nearctic Temperate grasslands, savannas, and shrublands Central and Southern mixed grasslands Kansas
Nearctic Temperate grasslands, savannas, and shrublands Central and Southern mixed grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Central and Southern mixed grasslands Oklahoma
Nearctic Temperate grasslands, savannas, and shrublands Central and Southern mixed grasslands Texas
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Illinois
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Indiana
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Iowa
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Kansas
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Missouri
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Oklahoma
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Texas
Nearctic Temperate grasslands, savannas, and shrublands Central forest-grasslands transition Wisconsin
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Iowa
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Kansas
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Minnesota
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Missouri
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands North Dakota
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Central tall grasslands Wisconsin
Nearctic Temperate grasslands, savannas, and shrublands Edwards Plateau savanna Texas
Nearctic Temperate grasslands, savannas, and shrublands Flint Hills tall grasslands Kansas
Nearctic Temperate grasslands, savannas, and shrublands Flint Hills tall grasslands Oklahoma
Nearctic Temperate grasslands, savannas, and shrublands Montana Valley and Foothill grasslands Montana
Nearctic Temperate grasslands, savannas, and shrublands Nebraska Sand Hills mixed grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Nebraska Sand Hills mixed grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern mixed grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Northern mixed grasslands North Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern mixed grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern short grasslands Montana
Nearctic Temperate grasslands, savannas, and shrublands Northern short grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Northern short grasslands North Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern short grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern short grasslands Wyoming
Nearctic Temperate grasslands, savannas, and shrublands Northern tall grasslands Minnesota
Nearctic Temperate grasslands, savannas, and shrublands Northern tall grasslands North Dakota
Nearctic Temperate grasslands, savannas, and shrublands Northern tall grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Palouse grasslands Idaho
Nearctic Temperate grasslands, savannas, and shrublands Palouse grasslands Oregon
Nearctic Temperate grasslands, savannas, and shrublands Palouse grasslands Washington
Nearctic Temperate grasslands, savannas, and shrublands Texas blackland prairies Texas
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Colorado
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Kansas
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Nebraska
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands New Mexico
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Oklahoma
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands South Dakota
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Texas
Nearctic Temperate grasslands, savannas, and shrublands Western short grasslands Wyoming
Nearctic Tundra Alaska-St. Elias Range tundra Alaska
Nearctic Tundra Aleutian Islands tundra Alaska
Nearctic Tundra Arctic coastal tundra Alaska
Nearctic Tundra Arctic foothills tundra Alaska
Nearctic Tundra Beringia lowland tundra Alaska
Nearctic Tundra Beringia upland tundra Alaska
Nearctic Tundra Brooks-British Range tundra Alaska
Nearctic Tundra Interior Yukon-Alaska alpine tundra Alaska
Nearctic Tundra Ogilvie-MacKenzie alpine tundra Alaska
Nearctic Tundra Pacific Coastal Mountain icefields and tundra Alaska
Nearctic Mediterranean forests, woodlands, and shrub California coastal sage and chaparral California
Nearctic Mediterranean forests, woodlands, and shrub California interior chaparral and woodlands California
Nearctic Mediterranean forests, woodlands, and shrub California montane chaparral and woodlands California
Nearctic Deserts and xeric shrublands Chihuahuan desert Arizona
Nearctic Deserts and xeric shrublands Chihuahuan desert New Mexico
Nearctic Deserts and xeric shrublands Chihuahuan desert Texas
Nearctic Deserts and xeric shrublands Colorado Plateau shrublands Arizona
Nearctic Deserts and xeric shrublands Colorado Plateau shrublands Colorado
Nearctic Deserts and xeric shrublands Colorado Plateau shrublands New Mexico
Nearctic Deserts and xeric shrublands Colorado Plateau shrublands Utah
Nearctic Deserts and xeric shrublands Great Basin shrub steppe California
Nearctic Deserts and xeric shrublands Great Basin shrub steppe Idaho
Nearctic Deserts and xeric shrublands Great Basin shrub steppe Nevada
Nearctic Deserts and xeric shrublands Great Basin shrub steppe Utah
Nearctic Deserts and xeric shrublands Mojave desert Arizona
Nearctic Deserts and xeric shrublands Mojave desert California
Nearctic Deserts and xeric shrublands Mojave desert Nevada
Nearctic Deserts and xeric shrublands Mojave desert Utah
Nearctic Deserts and xeric shrublands Snake-Columbia shrub steppe California
Nearctic Deserts and xeric shrublands Snake-Columbia shrub steppe Idaho
Nearctic Deserts and xeric shrublands Snake-Columbia shrub steppe Nevada
Nearctic Deserts and xeric shrublands Snake-Columbia shrub steppe Oregon
Nearctic Deserts and xeric shrublands Snake-Columbia shrub steppe Washington
Nearctic Deserts and xeric shrublands Sonoran desert Arizona
Nearctic Deserts and xeric shrublands Sonoran desert California
Nearctic Deserts and xeric shrublands Tamaulipan mezquital Texas
Nearctic Deserts and xeric shrublands Wyoming Basin shrub steppe Colorado
Nearctic Deserts and xeric shrublands Wyoming Basin shrub steppe Idaho
Nearctic Deserts and xeric shrublands Wyoming Basin shrub steppe Montana
Nearctic Deserts and xeric shrublands Wyoming Basin shrub steppe Utah
Nearctic Deserts and xeric shrublands Wyoming Basin shrub steppe Wyoming
Neotropic Tropical and subtropical moist broadleaf forests South Florida rocklands Florida
Neotropic Flooded grasslands and savannas Everglades Florida
Oceania Tropical and subtropical moist broadleaf forests Hawaiian tropical rainforests Hawaii
Oceania Tropical and subtropical dry broadleaf forests Hawaiian tropical dry forests Hawaii
Oceania Tropical and subtropical grasslands, savannas, and shrublands Hawaiian tropical high shrublands Hawaii
Oceania Tropical and subtropical grasslands, savannas, and shrublands Hawaiian tropical low shrublands Hawaii
Oceania Tropical and subtropical grasslands, savannas, and shrublands Northwestern Hawaii scrub Hawaii

See also[edit]

References[edit]

  • 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.