horsetail


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horsetail,

any plant of the genus Equisetum [Lat.,=horse bristle], the single surviving genus of a large group (Equisetophyta) of primitive vascular plants. Like the ferns and club mosses, relatives of the living horsetails thrived in the Carboniferous period (when they contributed to coal deposits); the group as a whole is now considered relictual. Horsetails have whorls of small scalelike leaves around a hollow, jointed stem that is green and carries on photosynthesis. They reproduce by an alternation of generations (see reproductionreproduction,
capacity of all living systems to give rise to new systems similar to themselves. The term reproduction may refer to this power of self-duplication of a single cell or a multicellular animal or plant organism.
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) similar to that of the ferns; in some horsetails, special nongreen shoots have at their tops strobili (see conecone
or strobilus
, in botany, reproductive organ of the gymnosperms (the conifers, cycads, and ginkgoes). Like the flower in the angiosperms (flowering plants), the cone is actually a highly modified branch; unlike the flower, it does not have sepals or petals.
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) that bear the spores. Fossil evidence indicates that many extinct horsetails were treelike and attained a far greater size than do living types, although the stems of a sprawling tropical American species (E. giganteum) grows to more than 30 ft (9.1 m) in length. Other species, mostly under 3 ft (91 cm), are found in all temperate and tropical regions except New Zealand and Australia; the common types of North America and Eurasia are E. arvense in drier habitats and E. hyemale, the scouring rush, in moist and wooded areas. The latter was formerly utilized for scouring purposes and it is still included in some scouring and abrasive powders; its typical coarse texture is due to the presence of silica. Other horsetails have been used for home remedies. Horsetails are classified in the division EquisetophytaEquisetophyta
, small division of the plant kingdom consisting of the plants commonly called horsetails and scouring rushes. Equisetum, the only living genus in this division, is descended evolutionarily from tree-sized fossil plants.
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, class Equisetopsida, order Equisetales, family Equisetaceae.
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horsetail

horsetail

A strange plant that starts with having fertile off-white beige stalks with scaly fingers on top in the spring, which wither and get replaced by non-fertile green stems resembling horse tails. These plants are very high in silica, but not as absorbable as bamboo, which has 7 times more useable silica. Fresh horsetail contains and enzyme that robs the body of vitamin B, so do not take large amounts. Horsetail is used in treating urinary tract infections, prostate inflammation, very good astringent for stopping bleeding, blood coagulation (thickens blood), helps broken bones heal faster, brittle nails and hair, rheumatoid arthritis, ulcers, anemia. Boil in water for clearing skin, acne and soaking feet. Do not use if pregnant or nursing. High amounts toxic.

horsetail

[′hȯrs‚tāl]
(botany)
The common name for plants of the genus Equisetum composing the order Equisetales. Also known as scouring rush.

horsetail

any tracheophyte plant of the genus Equisetum, having jointed stems with whorls of small dark toothlike leaves and producing spores within conelike structures at the tips of the stems: phylum Sphenophyta
References in periodicals archive ?
Cattle grazing in fields with horsetail are often stricken with severe illness and sometimes death.
This would explain why gardeners have long used horsetail extract to protect plants against pathogens and predators (Quarles, 1995).
Composition profile of horsetail (Equisetum giganteum L.) oleoresin: comparing SFE and organic solvents extraction.
Metabolism of horsetail (Equisetum arvense L.) has relatively small need for micro and macro elements and the rather poorer soils suit it better (Andersson et al., 1999).
Yn Japan mae'n nhw dal i ddefnyddio marchrawn y gaeaf (Equisetum hyemale; rough horsetail).
Spearmint leaf Labrador tea flower and leaf Blackcurrant leaf and berries Juniper berry Red clover blossom White clover blossom Wild rose petals and hips Dandelion blossom, leaf, and root Yarrow flower Horsetail Plantain leaf Coltsfoot leaf Wild raspberry leaf Wild strawberry leaf Chamomile tops Shepherd's purse leaf Chickweed leaf and flowers Pigweed leaf Fireweed flowers Cranberries
Nettles, valerian flowers, horsetail and oak bark are also used, and the vines are pruned, grapes picked and juice bottled according to lunar cycles.
She examined three caves, and each one was yellow from pollen belonging to hollyhocks, grape hyacinth, yellow yarrow (Achillea), horsetail (Equisetum), seven other summer flowering plants, and evidence of pine branches.
As I passed around a fossil of the bark of an ancient horsetail, the children contemplated what life was like 300 million years ago in what was then a tropical climate with giant horsetails 30 metres tall, darting lizards and huge dragonflies.
Examples include horsetail plants and unusual trees such as the gingko biloba.C[yen]
The materials in each Herbarium Constituent are listed in Mirra's nerdy but unequivocal language: "Equisetum arvense &C Equisetum pratense (Field horsetail & Shady horsetail)," for instance.