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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.
Cirrus uncinus is a type of cirrus cloud.The name cirrus uncinus is derived from Latin, meaning "curly hooks".Also known as mares' tails, these clouds are generally sparse in the sky and very thin.
Marestail (also mare's tail and mare's-tail) may refer to: ... a fern ally also known as horsetail and pipeweed; Hippuris, a genus of aquatic flowering plants, ...
Equisetum arvense, the field horsetail or common horsetail, is an herbaceous perennial plant in the Equisetidae (horsetails) sub-class, native throughout the arctic and temperate regions of the Northern Hemisphere. It has separate sterile non-reproductive and fertile spore-bearing stems growing from a perennial underground rhizomatous stem system.
Hippuris vulgaris (from Greek: ἵππος – horse and οὐρά – tail), known as mare's-tail [2] or common mare's-tail, is a common aquatic plant of Eurasia and North America ranging from Greenland to the Tibetan Plateau to Arizona. It prefers non-acidic waters.
Equisetum palustre, the marsh horsetail, [2] is a perennial herbaceous pteridophyte belonging to the subclass of horsetails (Equisetidae). It is widespread in cooler regions of Eurasia and North America .
The Horsetail Waterfall falls over the eastern ridge of El Capitan in Yosemite National Park. It typically flows only in the winter months. Watch as Yosemite's Horsetail Fall glows golden during ...
Horse tail, horsetail or horse's tail may refer to: the tail of a horse; Equisetidae, a subclass of living and extinct plants known as horsetails Equisetales, the single extant order of Equisetidae Equisetaceae, the horsetail family, the only extant family of Equisetales Equisetum, horsetail, the only living genus in Equisetaceae