| Distichlis spicata var. andina Beetle, 1955 |
| Distichlis spicata var. borealis (J. Presl) Beetle, 1943 |
| Distichlis spicata var. distichophylla (Michx.) Beetle, 1945 |
| Distichlis spicata var. divaricata Beetle, 1943 |
| Distichlis spicata var. laxa Vasey ex Beal, 1896 |
| Distichlis spicata var. mendocina (Phil.) Hack., 1906 |
| Distichlis spicata var. mexicana Beetle, 1943 |
| Distichlis spicata var. spicata (L.) Greene, 1887 |
| Distichlis spicata var. stolonifera Beetle, 1943 |
| Distichlis spicata var. stricta (Torr.) Thorne, 1978 |
| Distichlis stricta (Torr.) Rydb., 1905 |
| Distichlis stricta var. laxa (Vasey ex Beal) Fawc. & West ex Munz, 1935 |
| Distichlis texana (Vasey) Scribn., 1899 |
| Distichlis thalassica É. Desv., 1854 |
| Distomomischus Dulac, 1867 |
| Distomomischus myuros (L.) Dulac, 1867 |
| Doellochloa Kuntze, 1891 |
| Dolichochaete (C.E. Hubb.) J.B. Phipps, 1964 |
| Donacium Fr., 1843 |
| Donax P. Beauv., 1812 |