This is a very slow growing and attractive plant 
that forms sculptural variegated shapes.
 

Cultivation: Cereus is of easy, the variegated form prefers filtered light. Plant in a porous cactus soil with adequate drainage for best results. Water thoroughly during the growing season when soil is dry to the touch. Less or no water during cold winter months to prevent root loss. It is cold intolerant. Make sure they it is  not exposed to freezing temperatures ( Hardy to -2°C) or it may die. Since it is a relatively rapid grower, it  needs plenty of space for its roots. Repotting should be done every other year, or when the plant has outgrown its pot.

Propagation: From cuttings in spring (let them dry till the ends callous well). Then replant them in fresh cactus soil that is ever so slightly moist, and keep them that way till they root)

Scientific name:  Cereus sp.  (unknown) forma cristata mostruosa variegata.

Origin:  Garden origin (Nursery produced cultivar).

Conservation status: Listed in CITES appendix 2.

This plant produces lots of sculptural green yellow variegate, monstrous and crested shapes with very short reddish spines and woolly areoles.
 

The green form

Photo of similar cultivars of Cereus sp. (monstrous and crested forms):

• Cereus sp. forma mostruosa cristata
• Cereus sp. forma mostruosa cristata variegata
• Cereus sp. "WILD CREST"