Edge of the Prairiethe sand prairies and savannas of the Chicago region

    Iris virginica shrevei
    Northern blue flag

The large showy flowers of the blue flag iris brighten the sunny marsh areas in early summer. Early surveyors reported that this plant was very common in the extensive marsh areas of the Kankakee valley in pre-drainage times. Today, it is most frequently seen along ditch banks; however. Be careful using heavy equipment near this plant, it can easily be killed by soil compaction.

Iris virginica, blue flag

In Starke County, Indiana, where this individual was photographed, almost all marsh irises are a shade of blue.

    Links


Iris virginica shrevei on the University of North Texas web site.

Iris virginica shrevei on badbear.com.

Iris virginica shrevei photograph by Joe Nowak.

 

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