| Panicum dichotomum var. acuminatum (Sw.) Griseb., 1864 |
| Panicum dichotomum var. barbulatum (Michx.) Alph. Wood, 1861 |
| Panicum dichotomum var. commune S. Watson & J.M. Coult., 1890 |
| Panicum dichotomum var. dichotomum L., 1753 |
| Panicum dichotomum var. divaricatum Vasey, 1889 |
| Panicum dichotomum var. glabrescens Griseb., 1864 |
| Panicum dichotomum var. lanuginosum (Elliott) Alph. Wood, 1861 |
| Panicum dichotomum var. laxiflorum (Lam.) Beal, 1896 |
| Panicum dichotomum var. lucidum (Ashe) Lelong, 1984 |
| Panicum dichotomum var. pubescens Munro, 1857 |
| Panicum dichotomum var. sphaerocarpum (Elliott) Alph. Wood, 1861 |
| Panicum dichotomum var. tenue (Muhl.) C.F. Reed, 1989 |
| Panicum dichotomum var. villosum (A. Gray) Vasey, 1889 |
| Panicum dichotomum var. viride Vasey, 1889 |
| Panicum didistichum Mez, 1917 |
| Panicum difforme Roth, 1817 |
| Panicum diffusum Sw., 1788 |
| Panicum dimidiatum L., 1753 |
| Panicum dispersum Trin., 1834 |
| Panicum distachyum L., 1771 |