It is a major component of the grassland complex of this continent, especially the tallgrass prairies that once occupied over a million square kilometres (400,000 square miles).
Schizachyrium scoparium or little bluestem once flourished throughout North America feeding bison and other grazing animals. It is a major component of the grassland complex of this continent, especially the tallgrass prairies that once occupied over a million square kilometres (400,000 square miles).