The Nature Conservancy - South Dakota - includes information on TNC preserves in the state
Gardens, Herbaria and Collections
South Dakota State University's McCrory Gardens (SDSU)
Great Plains Flora Assn. 1986. Flora of the Great Plains.
Van Bruggen 1996. The Vascular Plants of South Dakota, 3rd edition.
Picture Guides and Specialty Books
Johnson & Larson 1999. Grassland Plants of South Dakota and the northern Great Plains.
Larson & Johnson 1999. Plants of the Black Hills and Bear Lodge Mountains. Cool Springs Press, Nashville, TN. 448 pp.