This plant is taking over my fescue pastures in Spartanburg County.
this grass is called common bristlegrass, Setaria glauca. There are several invasive bristlegrasses in the genus Setaria, and they are common in pastures and open disturbed areas. They often are sign of overgrazing because livestock don’t like them. In some parts of the country these are called foxtail grass, but that name should be reserved for an unrelated grass called Alopecurus.
Dr. Steven Hill, Botanist, SCNPS