| Sporobolus macrospermus Scribn. ex Beal, 1896 |
| Sporobolus mangaloricus Hochst. ex Miq., 1851 |
| Sporobolus matrella Nees, 1841 |
| Sporobolus mendocinus Méndez, 1994 |
| Sporobolus microspermus (Lag.) Hitchc., 1933 |
| Sporobolus minutiflorus (Trin.) Link, 1827 |
| Sporobolus minutissimus (Steud.) Hitchc., 1928 |
| Sporobolus muelleri (E. Fourn.) Hitchc., 1937 |
| Sporobolus muralis (Raddi) Hitchc. & Chase, 1917 |
| Sporobolus nealleyi Vasey, 1890 |
| Sporobolus niliacus (Fig. & De Not.) P.M. Peterson, 2014 |
| Sporobolus palmeri Scribn., 1898 |
| Sporobolus paniculatus (Trin.) T. Durand & Schinz, 1895 |
| Sporobolus patens Swallen, 1941 |
| Sporobolus pilosus Vasey, 1891 |
| Sporobolus plumbeus (Trin.) Hemsl., 1885 |
| Sporobolus poaeoides Hack., 1911 |
| Sporobolus poiretii (Roem. & Schult.) Hitchc., 1932 |
| Sporobolus potosiensis Wipff & S.D. Jones, 1994 |
| Sporobolus pulvinatus Swallen, 1941 |