| Zinnia maritima var. palmeri (A. Gray) B.L. Turner, 1990 |
| Zinnia microglossa (DC.) McVaugh, 1984 |
| Zinnia multiflora L., 1763 |
| Zinnia oligantha I.M. Johnst., 1940 |
| Zinnia palmeri A. Gray, 1887 |
| Zinnia pauciflora L., 1763 |
| Zinnia peruviana (L.) L., 1759 |
| Zinnia pumila A. Gray, 1849 |
| Zinnia purpusii Brandegee, 1924 |
| Zinnia schiedeana (Less.) Olorode & A.M. Torres, 1970 |
| Zinnia tenuis (S. Watson) Strother, 1979 |
| Zinnia venusta (A.M. Torres) Olorode & A.M. Torres, 1970 |
| Zinnia violacea Cav., 1791 |
| Zinnia zamudiana Calderón & Rzed., 1996 |
| Zinnia zinnioides (Kunth) Olorode & A.M. Torres, 1971 |
| Zinniinae Benth. & Hook. f., 1873 |
| Zycona Kuntze, 1891 |
| Zycona oppositifolia Kuntze, 1891 |
| Zyzyxia Strother, 1991 |
| Zyzyxia lundellii (H. Rob.) Strother, 1991 |