Horsetail?

Horsetail?

Observation - Horsetail?. Description: I had absolutely no idea what this was when I photographed it, but having spotted an observation of the giant horsetail on ispot, I dug these pictures out. Are they endangered?

I had absolutely no idea what this was when I photographed it, but having spotted an observation of the giant horsetail on ispot, I dug these pictures out. Are they endangered?