| Convolvulaceae | |
Merremia dissecta var. chacoensis
| O'Donell | Lilloa 6: 504 | 1941 |
| Convolvulaceae | |
Merremia dissecta var. dissecta
| | | |
| Convolvulaceae | |
Merremia dissecta var. edentata
| | | |
| Convolvulaceae | |
Merremia dissecta var. edentata
| (Meisn.) O'Donell | Lilloa 6: 502 | 1941 |
| Convolvulaceae | ** |
Merremia dissecta var. maximiliani
| (Meisn.) Hallier f. | Bot. Jahrb. Syst. 16: 552 | 1893 |
| Convolvulaceae | ! |
Merremia dissecta var. maximiliani
| (Meisn.) Lorentz | Fl. Il. Entre Ríos 84 | 1878 |