Iris pseudacorus (Pale-yellow Iris)
|Also known as:||Yellow Flag|
|Habitat:||part shade, sun; marshes, along shores|
|Bloom season:||May - June|
|Plant height:||2 to 4 feet|
|Wetland Indicator Status:||GP: OBL MW: OBL NCNE: OBL|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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Flower is 3 to 4 inches across with 3 large petal-like sepals that hang down and 3 smaller upright petals. The lower sepals have a ring of reddish brown flecks near the base and are beardless. There are a few flowers at the end of each stalk.
Pale-yellow Iris is an invasive species in Minnesota, escaping cultivation and potentially forming large colonies along shores and in shallow waters.
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Photos by K. Chayka taken at Long Lake Regional Park, Ramsey County.
Have you seen this plant in Minnesota, or have any other comments about it?