Beyrich threeawn wiregrass (Aristida beyrichiana), more commonly known simply as wiregrass, is a perennial grass found throughout the southeastern United States. "Threeawn" refers to the species' three-pronged seedheads, called "awns." Prior to widespread human settlement, it formed a major portion of the understory in the longleaf pine ecosystem that once covered much of Alabama's southern half. It's prevalence in southeastern Alabama earned the region the name Wiregrass.

Photo courtesy of James H. Miller and Ted Bodner, Southern Weed Science Society, Bugwood.org