| Muhlenbergia dubia E. Fourn., 1885 |
| Muhlenbergia dubioides C.O. Goodd., 1940 |
| Muhlenbergia dumosa Scribn. ex Vasey, 1892 |
| Muhlenbergia dumosa var. minor Scribn. ex Beal, 1896 |
| Muhlenbergia durangensis Y. Herrera, 1987 |
| Muhlenbergia elata Vasey, 1893 |
| Muhlenbergia elegans (Kunth) Trin., 1824 |
| Muhlenbergia elegans var. atroviolacea Kuntze, 1898 |
| Muhlenbergia elegans var. subviridis Kuntze, 1898 |
| Muhlenbergia elongata Scribn. ex Beal, 1896 |
| Muhlenbergia eludens C. Reeder, 1949 |
| Muhlenbergia emersleyi Vasey, 1892 |
| Muhlenbergia enervis (Scribn. ex Beal) Hitchc., 1913 |
| Muhlenbergia erecta J. Presl, 1830 |
| Muhlenbergia eriophylla Swallen, 1950 |
| Muhlenbergia exilis E. Fourn., 1886 |
| Muhlenbergia expansa (Poir.) Trin., 1824 |
| Muhlenbergia fasciculata Trin., 1824 |
| Muhlenbergia filiculmis Vasey, 1893 |
| Muhlenbergia filiformis (Thurb. ex S. Watson) Rydb., 1905 |