Cereus peruvianus monstrose
(This plant comes in a 3.5" pot. You will receive a very similar plant to the one in the picture. It may or may not be blooming at the time of your purchase. The plant is shipped in its pot to prevent any damage to the roots).
Cereus peruvianus monstrose is also known as the monstrose apple cactus. It is a branching, treelike cactus.
Hardiness zones: 9 through 11,
Description: Irregularly ribbed gray-green stems that grow up to 15 feet tall, large night-blooming white flowers and edible orange fruits with white flesh.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz