Oreocereus arboreus

Oreocereus celsianus. Syn: Oreocereus urmiriensis, (Old Man of the Andes / Old Man Argentina). Sunset: 10-13; USDA: 8-10. Full sun to light shade. Little water. Hardy to 12°F. Grows slowly to 10'. Origin: Bolivia, Peru, northern Argentina.

Oreocereus fossulatus (Oreocereus celsianus var. fossulatus)

Oreocereus fossulatus v. nivea

Oreocereus fossulatus v. potosinus

Oreocereus hendriksenianus v. gracilior

Oreocereus magnificus

Oreocereus neocelsianus

Oreocereus urmiriensis

Oreocereus variicolor (Synonyms: Arequipa variicolor, Morawetzia varicolor, Oreocereus knizei).