Could This Be Horsetail?
A gentleman brought in what is believe to be "Horsetail", but he wants to know for sure that is what it is. He also wants to know how to get rid of it. Currently it is growing right on his sandy beach area; it is not growing in the water. This past Spring he said this was not growing in his sandy beach area, but rather there were a lot of what looked like to be mushrooms. They were about 1-3 inches tall, not very big and the cap was about the size of a dime. Then as they died out/disappeared, then in came this green weed like growing. He would like to get rid of it, but does not want to do anything that would harm the environment, especially being it is close to the water.
yes the weed pictured is Field Horsetail or Equisetum arvense. I tis recommended that near the water you choose a non-chemical, mechanical or shade approach to controlling this paleo plant. Try this article for more information: