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The common name "common horsetail" references the appearance of the plant that when bunched together appears similar to a horse's tail. [7] Many species of horsetail have been described and subsequently synonymized with E. arvense. One of these is E. calderi, a small form described from Arctic North America. [8]
Equisetum (/ ˌ ɛ k w ɪ ˈ s iː t əm /; horsetail) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds. [2]Equisetum is a "living fossil", the only living genus of the entire subclass Equisetidae, which for over 100 million years was much more diverse and dominated the understorey of late Paleozoic forests.
Equisetum hyemale (rough horsetail [2]) is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae native to Eurasia and Greenland. It was formerly widely treated in a broader sense including a subspecies (subsp. affine) in North America, but this is now treated as a separate species, Equisetum praealtum. [3] [4]
This is a list of plants organized by their common names. However, the common names of plants often vary from region to region, which is why most plant encyclopedias refer to plants using their scientific names, in other words using binomials or "Latin" names.
Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. [1] Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of 30–50 meters (100–160 feet). [2]
Equisetaceae, also known as the horsetail family, [1] is a family of ferns and the only surviving family of the order Equisetales, with one surviving genus, Equisetum, comprising about twenty species.
The extant horsetails represent a tiny fraction of horsetail diversity in the past. There were three orders of the Equisetidae. The Pseudoborniales first appeared in the late Devonian. [1] The Sphenophyllales were a dominant member of the Carboniferous understory, and prospered until the mid and early Permian.
Grypus equiseti, known by the common name horsetail weevil, is a species of weevil native to Europe. [2] [3] [4] It feeds on Equisetum arvense (field horsetail or common horsetail) and Equisetum palustre (marsh horsetail) plants. [5] It has been introduced to New Zealand to control Equisetum arvense, which is an invasive species there.