Pyrus nivalis

About

Pyrus nivalis, commonly known as yellow pear or snow pear, is a species of tree in the family Rosaceae that grows naturally from South-East Europe to Western Asia. Like most pears, its fruit can be eaten raw or cooked; it has a mild sour taste. The fruit is picked in October, when it is still dry and unripe; it will not become soft and sweet until the end of November or December, hence the name snow pear.

Summary from Wikipedia