||Cultivars of native grasses have been developed by the USDA Natural Resources Conservation Service, USDA Agricultural Research Service, and land grant universities over the last seventy years. These cultivars have been thoroughly tested to prove their adaptation to geographic areas, soil drainage and pH, and specific uses. The existence of these cultivars has allowed agencies, universities, and organizations to promote the use of native grasses for a variety of conservation uses throughout the eastern United States. The proven range of adaptation has allowed commercial seed producers to market seed over large geographic areas and to earn profit sufficient to continue to produce seed of native grasses. It is critical that persons promoting and using native grasses appreciate the proven adaptation of the cultivars to the specific geographic areas, soil drainage and pH, and uses. Promotion or use of the cultivars outside of their proven adaptation will result in poor stands and poor performance for the intended use. This poster will list those cultivars, their geographic adaptation, and unique characteristics.