| |
| California Central Valley grasslands | United States |
| Canadian aspen forests and parklands | Canada, United States |
| Central and Southern mixed grasslands | United States |
| Central forest–grasslands transition | United States |
| Central tall grasslands | United States |
| Columbia Plateau | United States |
| Edwards Plateau savanna | United States |
| Flint Hills tall grasslands | United States |
| Montana valley and foothill grasslands | United States |
| Nebraska Sand Hills mixed grasslands | United States |
| Northern mixed grasslands | Canada, United States |
| Northern short grasslands | Canada, United States |
| Northern tall grasslands | Canada, United States |
| Palouse grasslands | United States |
| Texas blackland prairies | United States |
| Western short grasslands | United States |
