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Eco alerts by region

Invasive species are causing economic and environmental damage throughout our state. Click on your ecoregion to find out about the threats in your area.

Trans-Pecos Edwards Plateau South Texas Plains High Plains High Plains Gulf Coast Prairies and Marshes Pineywoods Rolling Plains Cross Timbers and Prairies Blackland Prairies Post Oak Savannahs Post Oak Savannahs

Key to Ecoregions


East Texas Pineywoods
The East Texas region is primarily a thick forest of pines, hence the name Pineywoods! This woodland is part of a larger forest that extends into Louisiana, Arkansas, and Oklahoma. The terrain is rolling with lower, wetter bottomlands that grow hardw...

Gulf Coast Prairies and Marshes
The Gulf Coast Prairies and Marshes region is a nearly level, slowly drained plain less than 150 feet in elevation, dissected by streams and rivers flowing into the Gulf of Mexico. The region includes barrier islands along the coast, salt grass marsh...

Post Oak Savannah
The Post Oak Savannah is a transition zone between the blackland prairies to the west and the Pineywoods to the east. This ecosystem is part of a historic oak belt, which travels south from Canada towards Central America. Few true examples of old-gr...

Blackland Prairies
The Blackland Prairie ecoregion spans approximately 6.1 million hectares from the Red River on the north to near San Antonio in south Texas. It is part of a tallgrass prairie continuum that stretches from Manitoba to the Texas Coast.The Blackland Pra...

Cross Timbers and Prairies
The Cross Timbers and Prairies region is a transitional area for many plants and animals whose ranges extend northward into the Great Plains or eastward into the forests. Vegetation on the landscape of the Cross Timbers and Prairies Ecological Region...

South Texas Plains
The South Texas Brush Country is characterized by plains of thorny shrubs and trees and scattered patches of palms and subtropical woodlands in the Rio Grande Valley. The plains were once covered with open grasslands and a scattering of trees, and t...

Edwards Plateau
The Edwards Plateau region comprises an area of central Texas commonly known as the Texas Hill Country. It is a land of many springs, stony hills, and steep canyons. The region is home to a whole host of rare plants and animals found nowhere else on...

Rolling Plains
The original prairie grasslands included tall and mid-grasses such as bluestems and gramas. Buffalo grass and other shortgrasses have increased under heavy, uncontrolled grazing. Much of the Rolling Plains today can be described as a mesquite-shortgr...

High Plains
The High Plains region, together with the Rolling Plains, comprises the southern end of the Great Plains of the central United States. The High Plains is a relatively level high plateau, separated from the Rolling Plains by the Caprock Escarpment. El...

Trans-Pecos
The Trans Pecos is perhaps the most complex of all the regions. It occupies the extreme western part of the state eastward generally to the Pecos River. This is a region of diverse habitats and vegetation, varying from the desert valleys and plateau...

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