Dear John,

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YOUR QUESTION #0023969:

What is this plant?

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Thank you for your question, John.  This is one of the oldest plant species on earth:  horsetail.  This article describes it and its control:  https://wric.ucdavis.edu/information/natural%20areas/wr_E/Equisetum.pdf

I hope this is helpful.  Good luck!

On Mon, Jun 7, 2021 at 7:38, Ask Extension

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Welcome!