What is the state flower of Wyoming?

What is the largest city in Wyoming by population? In what year was Wyoming admitted to the Union as a state? What is the official nickname of Wyoming? What is the state bird of Wyoming? Which state's official state flower is the camellia? Which state has the willow ptarmigan as its official state bird? Which state's official state flower is the forget-me-not? Which state has the cactus wren as its official state bird?