Lucuma Tree

A fruit tree of the Andes, in Ecuador, the tree is called lugma, from other side,it's called lucuma in Chile, The native habitat of this tree is the high Andean valleys of Peru, Chile, and Ecuador.

It has been used  by the Incas for at least 2,000 years, p.d., and still is not practically known in the rest of the world.

http://en.waleedabobatta.com/2017/08/30/lucuma-tree/