Because it is
Even though Washington DC is not a state, it does have a state flower: the American Beauty Rose.
"American Beauty" typically refers to a rose variety known for its deep red color and strong fragrance. It is a popular choice for gardens and floral arrangements.
The Washington state flower is the Coast Rhododendron.
Coast rhododendron is Washington's state flower
Washington's state flower is the rhododendron
Coast Rhododendron is the state flower of Washington.
Coast Rhododendron is the state flower of Washington.
The Saguaro Cactus Blossom is the Arizona's State Flower because of it beauty.
The American Dogwood is the state flower of Virginia.
The Virginia state flower is the American Dogwood.
Coast Rhododren
The Virginia state flower is the American Dogwood.