The Tulip poplar which is a magnolia and not a poplar. The Kentucky Coffeetree is a former holder of that title.
The official State bird is the Cardinal.
The Ohio Buckeye is the official state tree of Ohio.
Bluegrass State flag
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!
Kentucky Agate- but coal is the state mineral.
Kentucky's Nickname is The Bluegrass State.
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.