Wood horsetail (Equisetum sylvaticum) in a Norwegian forest, Skibotn, Lapland, Norway, Scandinavia, Europe

Giant horsetail (Equisetum telmateia) growing in damp woodland, Wiltshire, England, United Kingdom, Europe

Insects, Butterfly, Barred Horsetail, Close up of Butterfly on Equisetum Japonicum.

Light Micrograph (LM) of a transverse section of a stem of a Horsetail Fern (Equisetum sp.)