Kendall County (IL) Forest Preserve District
Blue
Flag Iris (Shreve's
Iris)
Iris virginica
shrevei
[C-value
5]
Iris family (Iridaceae)
Blooms
May
-
June
The beautiful native Blue Flag Iris is common in our area. It prefers partial to full sun and wet rich organic soil. Habitats include soggy meadows, open bottomland woodlands, swamps, fens and seeps. This beautiful wetland perennial produces clumps of basal leaves that are sword-shaped and up to 3' long and up to 1" across near their bases, tapering very gradually to pointed tips. The 2-3' tall green flowering stalks are either unbranched or sparingly branched and have one or more small sword-like alternate leaves. From the axil of each alternate leaf, there develops 1-2 delicate blue blossoms on pedicels 1-5" in length.
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Blue Flag Iris at Maramech Forest Preserve wet area June 10, 2013
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Blue Flag Iris foliage at Maramech Forest Preserve wet area June 10, 2013
Blue Flag Iris at Oswego-Montgomery Library wet area June 5, 2015
Blue Flag Iris at Oswego-Montgomery Library wet area June 5, 2015
Native Americans used the root of Blue Flag Iris to treat stomach problems and as a laxative. See Do Not Disturb Notice.
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