Big bluestem, a species of grass studied in this research and one that once dominated North American grasslands, can be recognized by its 3-pronged flower resembling a turkey's foot.
Switchgrass can become stemmy when not grazed or cut for hay. However, with appropriate grazing management, it proves to be an effective summer food source for beef cattle.
Part of the study monitored the weight gain of heifers grazing a variety of grasses. Switchgrass pastures grazed during summer proved to be the warm-season forage with the greatest productivity and returns.