Fact sheet: Blue flag iris
Blue flag is an emersed plant. These elegant natives are medium size plants, growing to four feet tall. They grow from stout underground rhizomes, and occasionally occur in swamps and marshes from the northern and central peninsula west to the central panhandle. There are seven Iris species that occur in Florida (Wunderlin,2003). Blue flag is prevalent throughout the eastern half of the U.S. and Canada (Kartesz, 1999).