| Location: | United States (Utah, New Mexico, Washington, Nevada, Idaho, California, Montana, Oregon, Colorado, Wyoming, Arizona) |
| Description: | This widespread semi-arid to arid grassland group occurs throughout the intermountain western U.S. that are composed of dominant drought-resistant perennial bunchgrasses such as Achnatherum spp., Bouteloua gracilis, Hesperostipa comata, Pleuraphis jamesii, Poa cusickii, Poa secunda, and Pseudoroegneria spicata often with scattered shrubs, especially Artemisia tridentata, Atriplex spp., Coleogyne ramosissima, Ephedra spp., Gutierrezia sarothrae, and Krascheninnikovia lanata. |