| Diodia prostrata Sw., 1788 |
| Diodia pulchella Brand, 1924 |
| Diodia rigida Cham. & Schltdl., 1828 |
| Diodia saponariifolia (Cham. & Schltdl.) K. Schum., 1889 |
| Diodia sarmentosa Sw., 1788 |
| Diodia serrulata (P. Beauv.) G. Taylor, 1944 |
| Diodia subulata (DC.) Standl., 1931 |
| Diodia teres Walter, 1788 |
| Diodia teres var. angustata A. Gray, 1886 |
| Diodia teres var. teres Walter, 1788 |
| Diodia tetracocca (M. Martens & Galeotti) Hemsl., 1879 |
| Diodia virginiana L., 1753 |
| Diphragmus C. Presl, 1845 |
| Diphragmus hexasepalus Borhidi & Lozada-Pérez, 2006 |
| Diphragmus scaber C. Presl, 1844 |
| Diphragmus scaber var. minor Borhidi & Lozada-Pérez, 2006 |
| Donnellyanthus Borhidi, 2011 |
| Donnellyanthus deamii (Donn. Sm.) Borhidi, 2011 |
| Duggena Vahl, 1793 |
| Duggena panamensis (Cav.) Standl., 1916 |