| Regno | Plantae |
| Sottoregno | Tracheobionta |
| Superdivisione | Spermatophyta |
| Divisione | Magnoliophyta |
| Classe | Magnoliopsida |
| Ordine | Saxifragales |
| Famiglia | Crassulaceae |
| Genere | Cotyledon |
South African shrubby succulents with thick, often powdery or felted leaves and bell-shaped flowers.