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Palmer amaranth was first identified in Iowa in 2013. Currently, we know it is established in five Iowa counties, but we suspect it is more widespread than this (Fig. 1). This past weekend we were made aware of a new infestation of Palmer amaranth in Fremont County, distant from the initial infestation in this county.  In addition, a suspicious looking Amaranthus species was found in Madison County – the owner is allowing a few plants to develop seedheads in order to make a positive identification.