It's a magnolia - just not the tall southern magnolia of Gone With the Wind fame - commonly called a Tulip Magnolia - one of the shrubby deciduous kinds - along with the Star Magnolia. I won't bore you with the botanical references.
The Tulip Tree of Tennessee fame is our state tree - Tulip Poplar or Yellow Poplar, or Tulip Tree. It is distantly related to the Magnolias.