Her ne kadar kaç türü olduğu tam olarak bilinmese de en önemli kaktüs türleri aşağıda olduğu gibidir;
Arrajadoa, Acanthocalycium, Ariocarpus, Aztekium, Aylostera, Aporocactus, Aporophyllum, Austrocylindropuntia, Cereus, Cintia, Bergerocactus, Astrophytum, Brasilicactus
, Austrocephalocereus, Chamaecereus, Browningia, Copiapoa, Frailea, Cheistocactus, Coryphantha, Echinocereus, Cochemiea, Cumariania, Echinocactus, Dolicothele, Echinopsis, Epiphyllum, Eriocactus, Escobaria, Espostoa, Ferocactus, Gymnocalycium, Haageocereus, Gymnocactus, Hamatocactus, Hatiora, Hildewinttera, Isolatocereus, Matucana, Lobivia, Notocactus, Neoporteria, Lepismium, Lemairocereus, Mammillaria, Malacocarpus, Morawetzia, Mediolobivia, Melocactus, Myrtillocactus, Nyctocereus, Opuntia, Pelecyphora, Oreocereus, Ortegocactus, Peniocereus, Pereskia, Yavia, Selenicereus, Pacherocactus, Yungasocereus, Pachycereus, Pilocereus, Schlumbergera, Rhipsalidopsis, Thelocactus, Weberocereus, Seticereus, Uebelmannia, Turbinicarpus ve Weberbauerocereus olarak bilinen kaktüs türleri bulunur.