The Oklahoma commemorative quarter features the state bird (scissor-tailed flycatcher) and state wildflower (Indian blankets); Oklahoma become the 46th state on November 16, 1907. Public domain image on Wikipedia (also available at U.S. Mint).
Oklahoma Commemorative Quarter
The U.S. Mint's commemorative quarter representing Oklahoma features a scissor-tailed flycatcher (the official state bird of Oklahoma) and Indian blankets (the state wildflower). Oklahoma became the 46th state in 1907. All State Quarters
Launched in 1999, the United States Mint's 50 State Quarters Program was a 10-year initiative that honored each of the nation's states in the order that they ratified the Constitution or were admitted into the Union.