| Zexmenia purpusii Brandegee, 1914 |
| Zexmenia rosei Greenm., 1904 |
| Zexmenia salmeoides (Sch. Bip.) Benth., 1873 |
| Zexmenia salvinii Hemsl., 1881 |
| Zexmenia scandens Hemsl., 1881 |
| Zexmenia seemannii A. Gray, 1852 |
| Zexmenia serrata La Llave, 1824 |
| Zexmenia squarrosa Greenm. ex W.W. Jones, 1905 |
| Zexmenia tequilana A. Gray, 1887 |
| Zexmenia texana (Torr.) A. Gray, 1852 |
| Zexmenia trachylepis Hemsl., 1881 |
| Zexmenia villosa Pol., 1877 |
| Zexmenia virgulta Klatt, 1892 |
| Zexmenia xylopoda W.W. Jones, 1905 |
| Zexmenia zinnioides Hemsl., 1881 |
| Zinnia L., 1759 |
| Zinnia acerosa (DC.) A. Gray, 1852 |
| Zinnia acerosa var. acerosa (DC.) A. Gray, 1852 |
| Zinnia acerosa var. guanajuatensis Calderón & Rzed., 1996 |
| Zinnia americana (Mill.) Olorode & A.M. Torres, 1970 |