| Cyperaceae | |
Carex muehlenbergii var. australis
| Olney ex L.H. Bailey | Proc. Amer. Acad. Arts 22(1): 141 | 1886 [1887] |
| Cyperaceae | ** |
Carex muehlenbergii var. australis
| Olney | Pl. Tex. 25 | 1873 |
| Cyperaceae | * |
Carex muehlenbergii var. austrina
| Small | Fl. S.E. U.S. 218 | 1903 |
| Cyperaceae | |
Carex muehlenbergii var. enervis
| Boott | Ill. Gen. Carex 124, pl. 400 | 1862 |
| Cyperaceae | |
Carex muehlenbergii var. muehlenbergii
| | | |
| Cyperaceae | |
Carex muehlenbergii var. xalapensis
| Britton | Mem. Torrey Bot. Club 5: 86 | 1894 |