| Quassiaholzbaum | Quassia |
| Quebrachobaum | Aspidosperma |
| Quebrachoholzbaum | Schinopsis |
| Quecke | Agropyron |
| Queckenreis | Leersia |
| Queenslandkauri | Agathis |
| Queller | Salicornia |
| Quellgras | Catabrosa |
| Quendel | Thymus |
| Quendelsommerwurz | Orobanche |
| Quetschblume | Thladiantha |
| Quinoa | Chenopodium |
| Quitte | Cydonia |