| Dahlia scapigeroides Sherff, 1947 |
| Dahlia scapigeroides var. apiculata Sherff, 1947 |
| Dahlia sherffii P.D. Sørensen, 1969 |
| Dahlia sorensenii H.V. Hansen & Hjert., 1997 |
| Dahlia spectabilis Saar & P.D. Sørensen, 2002 |
| Dahlia sublignosa (P.D. Sørensen) Saar & P.D. Sørensen, 2006 |
| Dahlia tamaulipana J. Reyes, Islas & Art. Castro, 2018 |
| Dahlia tenuicaulis P.D. Sørensen, 1969 |
| Dahlia tenuis B.L. Rob. & Greenm., 1896 |
| Dahlia tubulata P.D. Sørensen, 1980 |
| Dahlia variabilis (Willd.) Desf., 1829 |
| Dahlia variabilis var. excelsa (Benth.) Walp., 1843 |
| Dahlia wixarika Art. Castro, Carr.-Ortiz & Aarón Rodr., 2015 |
| Damnxanthodium Strother, 1987 |
| Damnxanthodium calvum (Greenm.) Strother, 1987 |
| Dasyanthus Bubani, 1900 |
| Dasyanthus conglobatus Bubani, 1900 |
| Davilanthus E.E. Schill. & Panero, 2010 |
| Davilanthus davilae (Panero & Villaseñor) E.E. Schill. & Panero, 2010 |
| Davilanthus hidalgoanus (E.E. Schill. & Panero) E.E. Schill. & Panero, 2010 |