Home » Plants » Iris virginica

Southern Blue Flag (Iris virginica L.)

Also known as southern blueflag, Virginia blueflag, Virginia blue flag, Virginia iris.

Page contents
Southern Blue Flag
Photo © Melissa McMasters, CC BY 4.0.


A showy, rhizomatous perennial native to wetlands and land-water borders mostly in the southeastern US but extending farther north in the Midwest.

Range - Expand

Native or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

Photo gallery

Photo © Eric Schmidt, Public Domain.
Photo © Melissa McMasters, CC BY 4.0.
Photo © Samuel A. Schmid, CC BY 4.0.
Photo © Kaden Slone, CC BY 4.0.
Photo © Marilynn Miller, CC BY 4.0.
Photo © Marie Chappell, CC BY 4.0.