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Equisetum arvense

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Juvenile stadium.

Native to:
Afghanistan, Alabama, Alaska, Albania, Alberta, Aleutian Is., Altay, Amur, Arizona, Arkansas, Austria, Azores, Baleares, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, Buryatiya, California, Central European Rus, China North-Central, China South-Central, China Southeast, Chita, Colorado, Connecticut, Corse, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, East European Russia, Finland, France, Fĝroyar, Georgia, Germany, Great Britain, Greece, Greenland, Hungary, Iceland, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kansas, Kazakhstan, Kentucky, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., Labrador, Magadan, Maine, Manchuria, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Pennsylvania, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Sakhalin, Sardegna, Saskatchewan, Sicilia, South Carolina, South Dakota, South European Russi, Spain, Svalbard, Sweden, Switzerland, Tadzhikistan, Tennessee, Texas, Tibet, Transcaucasus, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Ukraine, Utah, Uzbekistan, Vermont, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yugoslavia, Yukon.

Author: Carl Linnaeus, 1753 
Family:  EQUISETACEAE
Origin:  Asia, Europe, North America - se below...
Soil:  Rich
Water:  Max
Sun:  Medium
Thickness:  2 Centimetres
Height:  60-100 Centimetres
Flower:  Green Cones
Propagate:  Seeds/Cuttings
Names:  Field Horsetail, Common Horsetail,  Bottlebrush, Foxtail, Horse Pipes, Pipe Weed, Jointed Rush, Cat's Tail, Mare's Tail, Pinetop, Pine Grass, Snake Grass, Shave Grass, Paddy's Pipe, Corn Horsetail, Toadpipe, Prêle des Champs, Akerschachtelhalm, Cola de Caballo
Synonyms:  See below...

This member of the Equisetaceae family was described by Carl von Linnaeus in 1753. It is found from Asia over Europe to Northern America, growing in rich soil with lots of water and some sun. The stems can grow to 60 or even 100 centimetres, the tubers, formed on the rhizomes up to two centimetres in diameter. The cones are green.

The name Equisetum from Latin, equus; horse, and seta; bristle; animal hair. The species name arvense from Latin, arvum; field, cultivated land.

I have to admit it is a bit tiny to be called a caudex, but it is here as part of the Taxonomy Collection, and there are tiny root-bulbs....

Synonyms:
Allostelites arvensis (L.) Börner
Equisetum alpestre (Wahlenb.) Landolt
Equisetum arvense f. alpestre (Wahlenb.) Döll
Equisetum arvense var. alpestre Wahlenb.
Equisetum arvense subsp. arcticum Rupr.
Equisetum arvense f. arcticum (Rupr.) M.Broun
Equisetum arvense f. atratidens Lepage
Equisetum arvense subsp. boreale (Bong.) Tolm.
Equisetum arvense subsp. boreale (Bong.) Rupr.
Equisetum arvense f. caespitosum J.Rousseau
Equisetum arvense var. campestre (Schultz) Milde
Equisetum arvense var. decumbens Döll
Equisetum arvense f. decumbens W.D.J.Koch
Equisetum arvense subvar. decumbens G.Mey.
Equisetum arvense f. diffusum (A.A.Eaton) Clute
Equisetum arvense var. diffusum A.A.Eaton
Equisetum arvense var. frondescens Döll
Equisetum arvense var. granulatum G.Lawson
Equisetum arvense f. microstachyum A.A.Eaton
Equisetum arvense f. nanum (A.Braun ex Döll) M.Broun
Equisetum arvense var. nanum A.Braun ex Döll
Equisetum arvense f. nemorosum A.Braun ex Döll
Equisetum arvense var. nemorosum (A.Braun ex Döll) A.Braun & Engelm.
Equisetum arvense var. nudum Milde ex Farw.
Equisetum arvense var. polystachyon A.A.Eaton
Equisetum arvense f. polystachyon (A.A.Eaton) M.Broun
Equisetum arvense f. proliferum (Luerss.) M.Broun
Equisetum arvense var. proliferum (Luerss.) Farw.
Equisetum arvense monstr. proliferum Luerss.
Equisetum arvense f. pseudoalpestre Vict.
Equisetum arvense f. pseudonemorosum B.Boivin
Equisetum arvense f. pseudovarium Vict.
Equisetum arvense f. ramulosum (Rupr.) Klinge ex Scoggan
Equisetum arvense subsp. ramulosum (Rupr.) W.F.Rapp
Equisetum arvense var. ramulosum Rupr.
Equisetum arvense var. riparium (Fr.) Milde
Equisetum arvense var. triangulare Waters
Equisetum boreale Bong.
Equisetum calderi B.Boivin
Equisetum riparium Fr.