Spotting

This is indeed the common field horsetail. However, because it reproduces by spore does not classify it as a fungus/mushroom. Its green stalks use photosynthesis for food and the stems contain mineral silica from the ground, not chitin like fungus'. Hence the nickname "Scouring rushes". They are used for scrubbing pans and sanding fine musical instruments, still. These plants are 300 million years in the making. They were almost 50 feet tall. The carboniferous period i believe. Before mammals, birds, or even flowering plants. They are more closely classified as a "moss".

thank you. I have seen lots of the more mature green shoots of this plant.

I think these are the spring shoots of Field Horsetail, Equisetum arvense
http://en.wikipedia.org/wiki/Equisetum_a...