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Ecoregion (0)
Arizona/New Mexico Mountains (1)
Central Great Plains (2)
Chihuahuan Deserts (3)
Cross Timbers (4)
East Central Texas Plains (5)
Edwards Plateau (6)
High Plains (7)
South Central Plains (8)
South Texas Plains (9)
Southwestern Tablelands (10)
Texas Blackland Prairies (11)
Western Gulf Coastal Plain (12)
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