List of Washington state symbols
While some of the symbols are unique to Washington, others are used by multiple states. For example, the willow goldfinch (also known as the American goldfinch), Washington's state bird, is also an official symbol for Iowa and New Jersey. Washington's state grass, bluebunch wheatgrass, is also a symbol for the state of Montana. The square dance and apple are commonly used state dances and state foods, respectively. While most states have an official motto and nickname, Washington's motto ("Al-ki", meaning "by and by" in Chinook Jargon) and nickname ("The Evergreen State") have never been officially adopted by the Legislature.
Flag of Washington
Washington adopted its seal during the state constitutional convention on August 21, 1889, months prior to official admission as a U.S. state on November 11, 1889. While the young state did not have an official flag, a military flag displaying a gold profile of George Washington, the state's namesake, on blue bunting was used across the state at the turn of the 20th century and was first carried by the Washington Volunteer Infantry during the Philippine–American War in 1899. Another popular design was a purple or green flag bearing the state seal in gold.