Sorghastrum nutans is prominent in the tallgrass prairie ecosystem and the northern, central, and Flint Hills tall grassland ecoregions, along with big bluestem (Andropogon gerardi), little bluestem (Schizachyrium scoparium) and switchgrass (Panicum virgatum).
It is adapted in the United States from the southern border to Canada and from the eastern seaboard to Montana, Wyoming and Utah [REF].