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Equisetum variegatum

Schleich. ex F. Weber & D.M.H. Mohr

Variegated Horsetail

G5Secure Found in 38 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.138874
Element CodePPEQU010B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumSphenophyta
ClassEquisetopsida
OrderEquisetales
FamilyEquisetaceae
GenusEquisetum
Synonyms
Hippochaete variegata(Schleich. ex F. Weber & D.M.H. Mohr) Bruhin
Other Common Names
Prêle panachée (FR) variegated scouringrush (EN) Variegated Scouring-rush (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank MethodExpertise without calculation
Review Date2016-02-08
Change Date1984-04-24
Range Extent Comments
Circumpolar in the north temperate zone extending into the Arctic.
Ecology & Habitat

Diagnostic Characteristics

Stems evergreen, stomata borne in lines, 2 to each furrow. Stems with a central cavity and 5 or more vallecular cavities. Stems 5-12 ridged, teeth of sheaths persistant.

Habitat

Wet meadows, bogs, alluvial thickets, sandy soil of riverbanks, ditches, lakes, etc.

Reproduction

n=108. Hybridizes with E. hymale and E. laevigatum. On the spores elators act as "springs" expanding and contracting under varying conditions of humidity moving the spores mechanically.
Terrestrial Habitats
Sand/dune
Palustrine Habitats
HERBACEOUS WETLAND
Other Nations (2)
United StatesNNR
ProvinceRankNative
MontanaS4Yes
OhioS2Yes
NebraskaSNRYes
ConnecticutS4Yes
IdahoSNRYes
New HampshireSNRYes
PennsylvaniaS1Yes
South DakotaS1Yes
OregonSNRYes
IndianaS1Yes
ColoradoS3Yes
IllinoisS2Yes
AlaskaSNRYes
MinnesotaSNRYes
MassachusettsS3Yes
New YorkSNRYes
MichiganSNRYes
UtahS3Yes
North DakotaS1Yes
WisconsinS4Yes
VermontS5Yes
Rhode IslandSNRYes
New JerseySNRYes
WashingtonSNRYes
MaineS4Yes
WyomingS3Yes
CanadaN5
ProvinceRankNative
SaskatchewanS4Yes
OntarioS5Yes
NunavutS5Yes
Northwest TerritoriesS5Yes
ManitobaS4Yes
Nova ScotiaS4Yes
Prince Edward IslandS3Yes
AlbertaS5Yes
Island of NewfoundlandS3Yes
Yukon TerritoryS5Yes
QuebecS5Yes
British ColumbiaS5Yes
New BrunswickS4Yes
LabradorS3Yes
Plant Characteristics
DurationPERENNIAL, Short-lived, EVERGREEN
Economic Value (Genus)No
Roadless Areas (38)
Alaska (28)
AreaForestAcres
Boston BarChugach National Forest53,617
Brabazon AdditionTongass National Forest498,819
ChichagofTongass National Forest555,858
Chilkat-West Lynn CanalTongass National Forest199,772
Douglas IslandTongass National Forest28,065
El CapitanTongass National Forest26,693
Fidalgo-GravinaChugach National Forest257,968
Freshwater BayTongass National Forest44,933
Game CreekTongass National Forest54,469
GravinaTongass National Forest37,381
Hoonah SoundTongass National Forest79,764
Johnson PassChugach National Forest152,508
Juneau UrbanTongass National Forest101,581
Juneau-Skagway IcefieldTongass National Forest1,187,268
Kenai LakeChugach National Forest213,172
Kenai MountainsChugach National Forest306,600
KosciuskoTongass National Forest64,134
Nellie JuanChugach National Forest713,697
North KruzofTongass National Forest33,146
RedoubtTongass National Forest68,347
ResurrectionChugach National Forest224,615
RevillaTongass National Forest29,298
RhineTongass National Forest23,010
Roaded DonutChugach National Forest968
Taku-SnettishamTongass National Forest664,928
Upper SitukTongass National Forest16,789
Windham-Port HoughtonTongass National Forest161,952
Yakutat ForelandsTongass National Forest323,648
Michigan (2)
AreaForestAcres
FibreHiawatha National Forest7,432
Government IslandHiawatha National Forest225
Montana (2)
AreaForestAcres
Big Snowy Mountains WsaLewis and Clark National Forest88,003
Roderick #684Kootenai National Forest29,677
Oregon (1)
AreaForestAcres
Hurricane CreekWallowa-Whitman National Forest1,606
Vermont (1)
AreaForestAcres
Woodford 09086Green Mountain and Finger Lakes National Forests2,456
Washington (2)
AreaForestAcres
Boulder RiverMt Baker-Snoqualmie National Forest32,563
Glacier Peak JMt Baker-Snoqualmie National Forest26,482
Wyoming (2)
AreaForestAcres
Grayback RidgeBridger-Teton National Forest295,113
Gros Ventre MountainsBridger-Teton National Forest106,418
References (12)
  1. Bissell, J.K., and C.W. Bier. 1987 December 30. Presque Isle State Park: Botanical Survey and Natural Community Classification.
  2. Cobb, B. 1963. A Field Guide to the Ferns. Houghton Mifflin Company, Boston, USA.
  3. Fernald, M.L. 1950 Gray's Manual of Botany, 8th ed. American Book Company, New York. 1632 pp.
  4. Flora of North America Editorial Committee (FNA). 1993a. Flora of North America north of Mexico. Vol. 2. Pteridophytes and gymnosperms. Oxford Univ. Press, New York. xvi + 475 pp.
  5. Gleason, H.A. 1952. The new Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. 3 volumes. Hafner Press, New York. 1732 pp.
  6. Hauke, R.L. 1963. A taxonomic monograph of the genus <i>Equisetum </i>subgenus <i>Hippochaete</i>. C.B. Stuttgart. Weinheim GER.
  7. Hauke, R.L. 1983. Horsetails (Equisetums) in North America. Fiddlehead Forum 10:39-43.
  8. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  9. Lellinger, D.B. 1985. A field manual of the ferns and fern-allies of the U.S. and Canada. Smithsonian Institution Press, Washington, DC. 389 pp.
  10. Montgomery, J.O. 1981. <i>Equisetum variegatum</i> and <i>Equisetum </i>x <i>trachydon</i>. American Fern Journal 71:1-2.
  11. Schaffner, J.H. 1921. North American species of <i>Equisetum </i>North of Mexico. American Fern Journal 11:65-75.
  12. Wherry, E.T. 1940-1941. The Ferns and Lycosphenes of Pennsylvania. Bartonia 21:11-37.