Schizachyrium condensatum is a species of grass known by the English common names Colombian bluestem,[1] bush beardgrass, and little bluestem, and the Spanish common names aguará ruguay and yerba barbuda.

[2] It is native to South America,[3] and it is well known in other places as an introduced species and noxious weed, particularly in Hawaii.

It branches near the top of the stem, producing a wide, loose inflorescence up to 40 centimeters long.

It competes with native vegetation, displacing it and forming thick monotypic stands.

[2][4] After fire occurs, it is easier for a similarly invasive grass, Melinis minutiflora, to move in, which increases the total nonnative grass cover.