Nebraska Native Plant Society - "The mission of the Nebraska Native Plant Society is to promote the appreciation and conservation of Nebraskas native flora and to foster education and research on Nebraskas native plants." With information on upcoming events, other resources, and even how to join the society, you're sure to find assistance for any native plant or xeriscaping project you decide to pursue.
Nebraska Statewide Arboretum: FloraSearch - Created by the Nebraska Statewide Arboretum, this site provides a large number of resources to anyone interested in learning more about Nebraska's native plants. Here, you will find pictures and illustrations showing wildflowers, grasses, trees, and other plants that grow throughout the state along with other information, such as where to purchase such plants for your own use and tips on how to create your own Nebraska-style landscaping.
DigitalCommons@University of Nebraska: Nebraska Wild Flowers - This site has a link to a book entitled "Nebraska Wild Flowers," in PDF format, that was designed to "present to the general public representative types of many of the conspicuous wild flowers found in Nebraska." Within this book, you'll find information on around 260 different plants to help you create your own small gardens or landscapes.