| 13142 | Dahlia coccinea Cav. | | | a | | Dahlia coccinea Cav. | |
| 13143 | Dahlia excelsa Benth. | | | a | | Dahlia excelsa Benth. | |
| 13144 | Dahlia gracilis Ortgies | Dahlia coccinea Cav. | 13142 | | | Dahlia gracilis Ortgies | Dahlia coccinea Cav. |
| 13145 | Dahlia imperialis Roezl ex Ortgies | | | a | | Dahlia imperialis Roezl ex Ortgies | |
| 13146 | Dahlia maximiliana hort. ex Hook. f. | Dahlia imperialis Roezl ex Ortgies | 13145 | | | Dahlia maximiliana hort. ex Hook. f. | Dahlia imperialis Roezl ex Ortgies |
| 13147 | Dahlia maxonii Saff. | Dahlia imperialis Roezl ex Ortgies | 13145 | | | Dahlia maxonii Saff. | Dahlia imperialis Roezl ex Ortgies |
| 13148 | Dahlia merckii Lehm. | | | a | | Dahlia merckii Lehm. | |
| 13149 | Dahlia pinnata Cav. | | | a | | Dahlia pinnata Cav. | |
| 13150 | Dahlia popenovii Saff. | Dahlia coccinea Cav. | 13142 | | | Dahlia popenovii Saff. | Dahlia coccinea Cav. |
| 13151 | Dahlia rosea Cav. | Dahlia pinnata Cav. | 13149 | | | Dahlia rosea Cav. | Dahlia pinnata Cav. |
| 13152 | Dahlia scapigera (A. Dietr.) Knowles & Westc. | | | a | | Dahlia scapigera (A. Dietr.) Knowles & Westc. | |
| 13153 | Dahlia variabilis (Willd.) Desf. | Dahlia pinnata Cav. | 13149 | | | Dahlia variabilis (Willd.) Desf. | Dahlia pinnata Cav. |
| 300170 | Dahlia spp. | | | a | | Dahlia spp. | |
| 404565 | Dahlia pinnata auct. nonn. | Dahlia sorensenii H. V. Hansen & Hjert. | 464629 | | | Dahlia pinnata auct. nonn. | Dahlia sorensenii H. V. Hansen & Hjert. |
| 464629 | Dahlia sorensenii H. V. Hansen & Hjert. | | | a | | Dahlia sorensenii H. V. Hansen & Hjert. | |
| 464648 | Dahlia ×hortensis Guillaumin | Dahlia pinnata Cav. | 13149 | | | Dahlia hortensis Guillaumin | Dahlia pinnata Cav. |
| 476726 | Dahlia rupicola P. D. Sørensen | | | a | | Dahlia rupicola P. D. Sørensen | |
| 476727 | Dahlia dissecta S. Watson | | | a | | Dahlia dissecta S. Watson | |
| 480673 | Dahlia ×hybrida hort., nom. inval. | Dahlia pinnata Cav. | 13149 | | | Dahlia hybrida hort., nom. inval. | Dahlia pinnata Cav. |