Schizachyrium condensatum is a species of grass known by the English common names Colombian bluestem, bush beardgrass, and little bluestem, and the Spanish common names aguará ruguay and yerba barbuda. It is native to South America, and it is well known in other places as an introduced species and noxious weed, particularly in Hawaii.This is a perennial grass growing up to 1.5 meters tall.