Species
Field Horsetail
Ferns and Fern Allies
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Equisetum arvense, commonly known as field horsetail or common horsetail, is a species of vascular plant in the horsetail family and, like all horsetails, a type of fern, native throughout the arctic and temperate regions of the Northern Hemisphere. It has two distinct growth forms, a fertile spore-bearing stem and a separate sterile green stem, and is sometimes confused with the unrelated mare's tail.
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