What is the U.S. national flower?

On the 20th of November , 1986, then president Ronald Reagan signed a proclamation certifying the rose as the national flower in a ceremony at the White House Rose Garden.

The United States Senate resolution:

"The flower commonly known as the rose is designated and adopted as the national floral emblem of the United States of America, and the President of the United States is authorized and requested to declare such fact by proclamation".

The rose is, of course, not the only symbol of the country. Each American state has its official state flower and state bird. For example, Minnesota's official symbols are common loon and monarch butterfly. Such symbols as state fruit and vegetables also exist, for example, Illinois's state vegetable is sweet corn. Speaking about the national symbols, the bald eagle and the bison (buffalo) are the US state bird and state mammal. Bison has earned such a title only a short time ago, in May, 2016.