| Bouteloua scabra (Kunth) Columbus, 1999 |
| Bouteloua scorpioides Lag., 1816 |
| Bouteloua simplex Lag., 1805 |
| Bouteloua simplex var. actinochloides Henrard, 1921 |
| Bouteloua simplex var. rahmeri (Phil.) Henrard, 1921 |
| Bouteloua sonorae Griffiths, 1912 |
| Bouteloua stolonifera Scribn., 1891 |
| Bouteloua stricta Vasey, 1888 |
| Bouteloua tamaulipensis G.J. Pierce ex D.L. Pacheco & Columbus, 2008 |
| Bouteloua tenuis (P. Beauv. ex Kunth) Griseb., 1874 |
| Bouteloua tenuis var. humilis (P. Beauv. ex Kunth) Griseb., 1879 |
| Bouteloua texana S. Watson, 1883 |
| Bouteloua triaena (Trin. ex Spreng.) Scribn., 1891 |
| Bouteloua trifida Thurb. ex S. Watson, 1883 |
| Bouteloua trifida var. burkii (Scribn. ex S. Watson) Vasey ex L.H. Dewey, 1894 |
| Bouteloua trinii (E. Fourn.) Griffiths, 1912 |
| Bouteloua uniflora Vasey, 1891 |
| Bouteloua uniflora var. coahuilensis Gould & Kapadia, 1964 |
| Bouteloua uniflora var. uniflora Vasey, 1891 |
| Bouteloua varia (Swallen) Columbus, 1999 |