Glaucous Bristlegrass is a tall grass with distinctive bluish-green coloration that makes it unique among other grasses in its family. Synonyms for this species include Andropogon glaucus and Andropogon ternarius var. glaucus. Its common name can also be abbreviated as GBG. This grass is native to the eastern and central regions of North America, and it prefers to grow in prairies, savannahs, and open woodland habitats. Other words that could be used to describe glaucous bristlegrass include bluish, greenish, and waxy. Additionally, it is sometimes referred to as Blue Gamagrass or Silver Bristlegrass due to its unique appearance.