| Zinnia acerosa (DC.) A. Gray | | a | | Zinnia acerosa (DC.) A. Gray | | 42256 | |
| Zinnia angustifolia Kunth | | a | | Zinnia angustifolia Kunth | | 42257 | |
| Zinnia elegans Jacq. | | a | | Zinnia elegans Jacq. | | 42258 | |
| Zinnia grandiflora Nutt. | | a | | Zinnia grandiflora Nutt. | | 42259 | |
| Zinnia haageana Regel | | a | | Zinnia haageana Regel | | 42260 | |
| Zinnia juniperifolia (DC.) A. Gray | | a | | Zinnia juniperifolia (DC.) A. Gray | | 42261 | |
| Zinnia linearis Benth. | Zinnia angustifolia Kunth | | | Zinnia linearis Benth. | Zinnia angustifolia Kunth | 42262 | 42257 |
| Zinnia multiflora L. | Zinnia peruviana (L.) L. | | | Zinnia multiflora L. | Zinnia peruviana (L.) L. | 42263 | 42265 |
| Zinnia pauciflora L. | Zinnia peruviana (L.) L. | | | Zinnia pauciflora L. | Zinnia peruviana (L.) L. | 42264 | 42265 |
| Zinnia peruviana (L.) L. | | a | | Zinnia peruviana (L.) L. | | 42265 | |
| Zinnia pumila A. Gray | Zinnia acerosa (DC.) A. Gray | | | Zinnia pumila A. Gray | Zinnia acerosa (DC.) A. Gray | 42266 | 42256 |
| Zinnia violacea Cav. | Zinnia elegans Jacq. | | | Zinnia violacea Cav. | Zinnia elegans Jacq. | 104661 | 42258 |
| Zinnia spp. | | a | | Zinnia spp. | | 300688 | |
| Zinnia angustifolia Kunth var. greggii (B. L. Rob. & Greenm.) McVaugh | | a | i | Zinnia angustifolia Kunth var.greggii (B. L. Rob. & Greenm.) McVaugh | | 310144 | |
| Zinnia greggii B. L. Rob. & Greenm. | Zinnia angustifolia Kunth var. greggii (B. L. Rob. & Greenm.) McVaugh | | | Zinnia greggii B. L. Rob. & Greenm. | Zinnia angustifolia Kunth var.greggii (B. L. Rob. & Greenm.) McVaugh | 310145 | 310144 |
| Zinnia bicolor (DC.) Hemsl. | | a | | Zinnia bicolor (DC.) Hemsl. | | 311622 | |
| Zinnia tenella B. L. Rob. | Zinnia bicolor (DC.) Hemsl. | | | Zinnia tenella B. L. Rob. | Zinnia bicolor (DC.) Hemsl. | 311624 | 311622 |
| Zinnia angustifolia Kunth var. angustifolia | | a | i | Zinnia angustifolia Kunth var.angustifolia | | 316325 | |
| Zinnia microglossa (DC.) McVaugh | | a | | Zinnia microglossa (DC.) McVaugh | | 318732 | |
| Zinnia citrea A. M. Torres | | a | | Zinnia citrea A. M. Torres | | 318734 | |
| Zinnia bidens Retz. | Glossocardia bidens (Retz.) Veldkamp | | | Zinnia bidens Retz. | Glossocardia bidens (Retz.) Veldkamp | 423880 | 447801 |
| Zinnia tenuiflora Jacq. | Zinnia peruviana (L.) L. | | | Zinnia tenuiflora Jacq. | Zinnia peruviana (L.) L. | 451964 | 42265 |
| Zinnia hybr. | | a | | Zinnia hybr. | | 452547 | |
| Zinnia ×marylandica D. M. Spooner et al. | | a | | Zinnia marylandica D. M. Spooner et al. | | 456018 | |
| Zinnia verticillata Andrews | Zinnia peruviana (L.) L. | | | Zinnia verticillata Andrews | Zinnia peruviana (L.) L. | 461232 | 42265 |
| Zinnia ×darwinii J. N. Haage & E. Schmidt | | a | | Zinnia darwinii J. N. Haage & E. Schmidt | | 468914 | |