Equisetum fluviatile

Equisetum fluviatile is a member of the Equisetaceae family and is commonly known as water horsetail or swamp horsetail. This vascular plant is a perennial herb that reproduces by spores. It is found in various regions such as Labrador, Newfoundland, Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Nunavut, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon, Saint Pierre and Miquelon, as well as in the Nearctic and Palaearctic regions. It was first described by Linnaeus in 1753. However, the type specimen for this species is not clearly established in Linnaeus' herbarium, as noted in a discussion from a botanical source.