The oak tree has long been prized for legendary strength, longevity and excellent wood properties. Oak trees adapt well in the natural forest, the suburban yard and oak parks of inner cities. Oaks have become objects of art, myth and worship and frequently, oak trees are chosen as a symbol for all trees and for forestry in general. An oak tree is the state tree of Maryland, Connecticut, Illinois, Georgia, New Jersey and Iowa. The mighty oak is also the official tree of the capitol of the United States, Washington, D.C.
Does your tree have leaves that are rounded in the bottom of the sinus and at the top of the lobe and have no spines? If so you have a white oak.
Does your tree have leaves that are angular to rounded at the base of the sinus and angular at the top of the lobe and have small spines? If so you have a red oak.
Does your tree have evergreen leaves that are angular at the tip of the lobe and shallow, rounded at the base of the lobe and have large, sharp spines? Does your tree have red berries? If so you have an American holly.Source: http://forestry.about.com/od/treeidentification/tp/tree_key_id_pinnalobed.htm | http://forestry.about.com/od/hardwoods/tp/the_oak_tree.htm