Texas Natural Regions Minor (0)
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| Balcones Canyonlands |
| Blackland Prairie |
| Bordas Escarpment |
| Brush Country |
| Canadian Breaks |
| Coastal Sand Plains |
| Desert Scrub |
| Desert grassland |
| Dunes/Barrier |
| Eastern Cross Timbers |
| Estuarine Zone |
| Grand Prairie |
| High Plains |
| Lampasas Cut Plain |
| Live Oak-Mesquite Savanna |
| Longleaf Pine Forest |
| Mesquite Plains |
| Mixed Pine-Hardwood Forest |
| Mountain ranges |
| Oak woodlands |
| Salt Basin |
| Sand Hills |
| Stockton Plateau |
| Upland Prairies & Woods |
| escarpment Breaks |
| subtropical Zone |
| western Cross timbers |
Texas Natural Regions Major (1)
| BLACKLAND PRAIRIE |
| COASTAL SAND PLAIN |
| EDWARDS PLATEAU |
| GULF COAST PRAIRIES & MARSHES |
| HIGH PLAINS |
| LLANO UPLIFT |
| OAK WOODS & PRAIRIES |
| PINEY WOODS |
| ROLLING PLAINS |
| SOUTH TEXAS BRUSH COUNTRY |
| TRANS PECOS |
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