Plant Maps
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Interactive EPA Ecoregions Map for Oklahoma

Based on Ecoregions developed by the EPA, Plantmaps Ecoregions describe areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources, as well as similarity of climate that can assist Oklahoma gardenders.

25b - Rolling Sand Plains
25c - Moderate Relief Plains
25e - Rolling Cropland and Range
26a - Cimarron Breaks
26b - Flat Tablelands and Valleys
26c - Caprock Canyons, Badlands, and Breaks
26f - Mesa de Maya/Black Mesa
27d - Wellington-McPherson Lowland
27h - Red Prairie
27i - Broken Red Plains
27k - Wichita Mountains
27l - Pleistocene Sand Dunes and Sandsage Grassland
27m - Red River Tablelands
27n - Gypsum Hills
27o - Cross Timbers Transition
27p - Salt Plains
27q - Rolling Red Hills
27r - Limestone Hills
28a - Flint Hills
29a - Cross Timbers
29b - Eastern Cross Timbers
29c - Western Cross Timbers
29d - Grand Prairie
29g - Arbuckle Uplift
29h - Northwestern Cross Timbers
29i - Arbuckle Mountains
33a - Northern Post Oak Savanna
35b - Floodplains and Low Terraces
35c - Pleistocene Fluvial Terraces
35d - Cretaceous Dissected Uplands
35g - Red River Bottomlands
35h - Blackland Prairie
36a - Athens Plateau
36b - Central Mountain Ranges
36d - Fourche Mountains
36e - Western Ouachitas
36f - Western Ouachita Valleys
37a - Scattered High Ridges and Mountains
37b - Arkansas River Floodplain
37d - Arkansas Valley Plains
37e - Lower Canadian Hills
38b - Lower Boston Mountains
39a - Springfield Plateau
39b - Dissected Springfield Plateau-Elk River Hills
40b - Osage Cuestas
40d - Cherokee Plains