Bouteloua barbata is a species of grass known by the common name six-weeks grama native to North America.

It is native to North America, where it occurs in the southwestern United States and south to Oaxaca in southern Mexico.

[1] This species is an annual or perennial grass producing tufts of stems up to 30 to 75 cm (12 to 30 in) long,[1][2] lying prostrate, spreading, or standing erect.

[1] While it is palatable, this grass is not considered a good forage for livestock, as it is a small plant and is green for a short time.

Many birds, and small animals including prairie dogs and desert kangaroo rats eat the seeds of this and other grama grasses.