Nebraska Sandhills Prairie is characterized by stabilized sand dunes which are rolling to steep, irregularly shaped, and with narrow, elongated, gently sloping interdunal valleys. Essentially none of this wind-erosive type is farmed, although attempts to farm parts of the Sandhills with center pivot irrigation have been made in recent times. Uplands are grazed by livestock, and some of the wet valleys are hayed.
The Sandhills is vegetationally distinct with big bluestem, sand bluestem, little bluestem, prairie sandreed, and needle and thread as major grasses. Other typical species are switchgrass, sand dropseed, Junegrass, sun sedge, Indiangrass, Indian ricegrass, sand muhly, sand lovegrass, blowout grass and yucca.
(Johnson, James R. And Gary E. Larson, 1999, Grassland Plants of South Dakota and the Northern Great Plains, South Dakota State University College of Agriculture and Biological Sciences South Dakota Agricultural Experiment Station, Brookings, SD 57007, 288p.)