It is common name of the fruit that belongs to the tree
type Pyrus, which is classified in the subfamily of the
Maloidea, under the family Rosaceae (Rosaceae). It is one
of the world's most important fruit trees that grows in
both hemispheres in warm climate.
Pear grows generally on one year old mature plants. Pear
trees live quite long (50-75 years) and if nor pruned often,
they extend quite high in length. After having planted, a
pear tree begins to bear fruit after 4 -7 years. When the tree
is 8- 10 years of age,it bears around 25-50 kg of fruit.
(Wikipedia)