Bluestem

noun

1. Any of various grasses of several genera, especially Andropogon, Bothriochloa, and Schizachyrium, often with bluish-green leaves, some of which are important North American prairie grasses.
2. The name of some coarse but useful grasses in the United States, chiefly Andropogon furcatus east of the Rocky Mountains, and Agropyrum glaucum further westward.
3. tall grass with smooth bluish leaf sheaths grown for hay in Western U.S.
4. Any of various grasses, including little bluestem and big bluestem.
5. tall grass with smooth bluish leaf sheaths grown for hay in the United States