| Panicum brodiei H. St. John, 1937 |
| Panicum bromoides Lam., 1791 |
| Panicum buchingeri E. Fourn. ex Hemsl., 1885 |
| Panicum bulbosum Kunth, 1815 |
| Panicum bulbosum subsp. sciaphilum (Rupr. ex E. Fourn.) Hitchc. & Chase, 1910 |
| Panicum bulbosum var. avenaceum (Kunth) Beal, 1896 |
| Panicum bulbosum var. minus Vasey, 1889 |
| Panicum burmannii Retz., 1783 |
| Panicum caatingense Renvoize, 1982 |
| Panicum caerulescens Hack. ex Hitchc., 1909 |
| Panicum caespitosum Sw., 1797 |
| Panicum caffrorum Retz., 1781 |
| Panicum cahoonianum Ashe, 1899 |
| Panicum californicum Benth., 1840 |
| Panicum calvescens Nees ex Trin., 1826 |
| Panicum campylostachyum Hack., 1901 |
| Panicum capillaceum Lam., 1791 |
| Panicum capillaceum var. strictius Döll, 1877 |
| Panicum capillare L., 1753 |
| Panicum capillare Rol. ex Rottb., 1778 |