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Small and attractive blue flowers are among the somewhat redeeming qualities of this unfortunate invasive. They are truly a lovely color blue, but they last only for one day, hence the common name. This flower may appear to have only two petals, but there is a third that is a very reduced white petal that is easy to overlook under the bright yellow sterile staminodes.
It is native throughout much of East Asia and northern parts of Southeast Asia. It has also been introduced to parts of central and southeastern Europe and much of eastern North America, where it has spread to become a noxious weed. It is common in disturbed sites and in moist soil.
Spotted in a backyard flower garden in Kennesaw, GA
Spotted on Sep 16, 2014
Submitted on Sep 17, 2014