According to the proclamation of the state legislature of New Jersey in 1950, the red oak was named the state's tree because it was important to the state because of its " . . . beauty of structure, strength, dignity and long life, that it is most useful commercially and enjoys great freedom from disease, that it is adapted to our New Jersey soils. . . "
New Jersey's state tree is the Northern Red Oak.
The Ohio Buckeye is the official state tree of Ohio.
The White Oak is the Official State Tree of Maryland.
The tulip tree is the official state tree of Indiana.
The Kukui nut tree (Candlenut tree) is the state tree. I do not think there is an official state nut- but the macadamia is pretty popular!
The Northern Red Oak is the state tree of New Jersey.
The Pine is the official state tree of Arkansas.
The American Elm is the official state tree of Massachusetts.
There is no state with the water oak as an official state tree.
The willow ptarmigan is the official state tree in Alaska. Sitka spruce is the official state tree in Alaska. Alaska's state flower is the alpine forget-me-not.
The Buckeye Tree, is the state tree of Ohio, Ohio State University, being the official state University of Ohio, used the name of the State tree (Buckeye Tree) for their official athletic nickname.
The state of Maine is often referred to as the Pine Tree State, though there is no state with the phrase Tree State as an official nickname.