Equisetum variegatum - Schleich. ex F. Weber & D.M.H. Mohr
Variegated Horsetail
Other English Common Names: Variegated Scouring-rush
Other Common Names: variegated scouringrush
Synonym(s): Hippochaete variegata (Schleich. ex F. Weber & D.M.H. Mohr) Bruhin
Taxonomic Status: Accepted
Related ITIS Name(s): Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr (TSN 17149)
French Common Names: prêle panachée
Unique Identifier: ELEMENT_GLOBAL.2.138874
Element Code: PPEQU010B0
Informal Taxonomy: Plants, Vascular - Ferns and relatives
 
Kingdom Phylum Class Order Family Genus
Plantae Sphenophyta Equisetopsida Equisetales Equisetaceae Equisetum
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Concept Reference
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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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Equisetum variegatum
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 08Feb2016
Global Status Last Changed: 24Apr1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Nation: United States
National Status: NNR
Nation: Canada
National Status: N5 (08Feb2016)

U.S. & Canada State/Province Status
United States Alaska (SNR), Colorado (S1), Connecticut (S4S5), Idaho (SNR), Illinois (S2S3), Indiana (S1), Maine (S4), Massachusetts (S3), Michigan (SNR), Minnesota (SNR), Montana (S4), Nebraska (SNR), New Hampshire (S3), New Jersey (SNR), New York (SNR), North Dakota (S1), Ohio (S2), Oregon (SNR), Pennsylvania (S1), Rhode Island (SNR), South Dakota (S1), Utah (S1), Vermont (SNR), Washington (SNR), Wisconsin (S4), Wyoming (S2S3)
Canada Alberta (S5), British Columbia (SNR), Labrador (S3), Manitoba (S5), New Brunswick (S4), Newfoundland Island (S3), Northwest Territories (S5), Nova Scotia (S3), Nunavut (S5), Ontario (S5), Prince Edward Island (S1), Saskatchewan (SNR), Yukon Territory (SNR)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Circumpolar in the north temperate zone extending into the Arctic.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Circumpolar in the north temperate zone extending into the Arctic.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States AK, CO, CT, ID, IL, IN, MA, ME, MI, MN, MT, ND, NE, NH, NJ, NY, OH, OR, PA, RI, SD, UT, VT, WA, WI, WY
Canada AB, BC, LB, MB, NB, NF, NS, NT, NU, ON, PE, SK, YT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
CO Archuleta (08007), Boulder (08013), Delta (08029), Douglas (08035)*, Gilpin (08047), Gunnison (08051), Jefferson (08059), La Plata (08067), San Juan (08111), San Miguel (08113)
CT Fairfield (09001), Litchfield (09005), Middlesex (09007), New Haven (09009)
IN La Porte (18091), Lagrange (18087), Lake (18089)
MA Berkshire (25003), Franklin (25011), Hampden (25013), Hampshire (25015), Norfolk (25021), Worcester (25027)
ND McHenry (38049)
NH Cheshire (33005), Coos (33007), Grafton (33009), Rockingham (33015), Strafford (33017), Sullivan (33019)
NJ Morris (34027), Passaic (34031), Sussex (34037), Warren (34041)
OH Geauga (39055), Henry (39069), Lucas (39095), Ottawa (39123)*, Portage (39133), Stark (39151)*, Summit (39153)
PA Erie (42049), Tioga (42117)
RI Kent (44003)
SD Harding (46063), Lawrence (46081)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 Upper Androscoggin (01040001)+*, Piscataqua-Salmon Falls (01060003)+, Nashua (01070004)+, Merrimack (01070006)+*, Upper Connecticut (01080101)+, Middle Connecticut (01080201)+, Miller (01080202)+, Deerfield (01080203)+, Chicopee (01080204)+, Lower Connecticut (01080205)+, Westfield (01080206)+, Farmington (01080207)+, Charles (01090001)+, Narragansett (01090004)+, Quinebaug (01100001)+, Housatonic (01100005)+
02 Hudson-Hoosic (02020003)+, Middle Hudson (02020006)+, Hackensack-Passaic (02030103)+, Middle Delaware-Mongaup-Brodhead (02040104)+, Middle Delaware-Musconetcong (02040105)+, Tioga (02050104)+
04 Little Calumet-Galien (04040001)+, St. Joseph (04050001)+, Ottawa-Stony (04100001)+, Lower Maumee (04100009)+, Cedar-Portage (04100010)+*, Cuyahoga (04110002)+, Ashtabula-Chagrin (04110003)+, Chautauqua-Conneaut (04120101)+, Lake Erie (04120200)+
05 French (05010004)+, Tuscarawas (05040001)+*
07 Chicago (07120003)+*
09 Lower Souris (09010003)+
10 Redwater (10120203)+, Upper Moreau (10130305)+, Upper South Platte (10190002)+, St. Vrain (10190005)+
14 East-Taylor (14020001)+, Lower Gunnison (14020005)+, San Miguel (14030003)+, Upper San Juan (14080101)+, Animas (14080104)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A slender, dark green, seldom branched, horsetail that grows in twisting, upcurving tufts.
Technical Description: Rhizomes branched and creeping. Stems small 25-35 mm tall, thin evergreen, clustered, unbranched above, persistant, with 3-12 ridges, these having 2 rows of silica tubercles and a deep central furrow. Centrum larger than the vallecular canals in the larger stems to sometimes absent in the smaller ones. Sheaths slightly longer than wide, spreading, green with a black rim, bearing persistant teeth with dark centers and wide white margins. The stem furrows extend up the sheath segments and into the teeth.
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.
Duration: PERENNIAL, Short-lived, EVERGREEN
Reproduction Comments: 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.
Palustrine Habitat(s): HERBACEOUS WETLAND
Terrestrial Habitat(s): Sand/dune
Habitat Comments: Wet meadows, bogs, alluvial thickets, sandy soil of riverbanks, ditches, lakes, etc.
Economic Attributes
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Production Method: Wild-harvested
Economic Comments: Some species of Equisetum have been used as scouring material for cookware - this is due to the presence of silica in the stems and also the ridges in the stems.
Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 30Apr1991
Element Ecology & Life History Author(s): ISAAC, J.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Bissell, J.K. & C.W. BIER. 1987 DEC 30. PRESQUE ISLE STATE PARK: BOTANICAL SURVEY AND NATURAL COMMUNITY CLASSIFICATION. U87BIS02.

  • Bissell, J.K., and C.W. Bier. 1987 December 30. Presque Isle State Park: Botanical Survey and Natural Community Classification.

  • Cobb, B. 1963. A Field Guide to the Ferns. Houghton Mifflin Company, Boston, USA.

  • Cobb, B. 1963. A Field Guide to the Ferns. Houghton Mifflin Company, Boston, USA. B63COB01PAUS

  • Fernald, M.L. 1949. Gray's Manual of Botany, Eighth edition. American Book Co. New York. B49FER01PAUS

  • Fernald, M.L. 1950 Gray's Manual of Botany, 8th ed. American Book Company, New York. 1632 pp.

  • Flora of North America Editorial Committee. 1993a. Flora of North America north of Mexico. Vol. 2. Pteridophytes and gymnosperms. Oxford Univ. Press, New York. xvi + 475 pp.

  • Gleason, H.A. 1952. New Britton & Brown. Illustrated Flora. Lancaster Press Inc. Lancaster, Pa. B52GLE01PAUS

  • 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.

  • Hauke, R.L. 1963. A taxonomic Monograph of the Genus Equisetum Subgenus Hippochaete. C.B. Stuttgart. Weinheim GER. B63HAU01PAUS

  • Hauke, R.L. 1963. A taxonomic monograph of the genus Equisetum subgenus Hippochaete. C.B. Stuttgart. Weinheim GER.

  • Hauke, R.L. 1983. Horsetails (Equisetums) in North America. Fiddlehead Forum 10:39-43.

  • Hauke, R.L. 1983. Horsetails (Equisetums) in North America. Fiddlehead Forum 10:39-43. A83HAU01PAUS

  • 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.

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Lellinger, D.B. 1985. A Field Manual of the Ferns and Fern-Allies of the United States and Canada. Smithsonian Inst. Press. Washington, D.C. B85LEL01PAUS

  • 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.

  • Montgomery, J.O. 1981. Equisetum variegatum and Equisetum x trachydon. American Fern Journal 71:1-2.

  • Montgomery, J.O. 1981. Equisetum variegatum and Equisetum x trachydon. American Fern Journal 71:1-2. A81MON01PAUS

  • Schaffner, J.H. 1921. North American species of Equisetum North of Mexico. American Fern Journal 11:65-75.

  • Schaffner, J.H. 1921. North American species of Equisetum North of Mexico. American Fern Journal 11:65-75. A21SCH01PAUS

  • Wherry, E.T. 1940-1941. The Ferns and Lycosphenes of Pennsylvania. Bartonia 21:11-37.

  • Wherry, E.T. 1940-1941. The Ferns and Lycosphenes of Pennsylvania. Bartonia 21:11-37. A40WHE01PAUS

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