Pat, it does seem to spread pretty fast. What you see in the photo with my little pumpkinseed started as one plant earlier this year and has spread to that shown. I had some Aqua Neat in my sprayer one day and hit one plant to make sure I could control it if need be. You can see the dead plant in the picture.

CMM, thanks for the reply. I guess time will tell if it's cattails. I would suspect they would get seed heads next year if that's the case.

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