Crassula sect. Petrogeton

Cladus: Eukaryota
Regnum: Plantae
Divisio: Magnoliophyta
Classis: Magnoliopsida
Ordo: Saxifragales
Familia: Crassulaceae
Subfamilia: Crassuloideae
Genus: Crassula
Subgenus: C. subg. Disporocarpa
Section: C. sect. Petrogeton
Species: C. alcicornus - C. capensis - C. dentata - C. nemerosa - C. saxiflora - C. simulans - C. umbella - C. umbraticola