The pecan tree's scientific name is Carya illioensis. It is a native to North America. The pecan tree is a member of the walnut family and in the hickory group. An important crop tree, it is grown for its fruit, the pecan nut, in orchards in the South and Southeast United States .
Pecan trees are also useful as shade or ornamental trees.
They grow well all over the South. The pecan is the state tree of Texas. It was adopted by Texas in 1919. There are two main classes of trees. One is flowering plants bearing seeds inside of a fruit.