Myriophyllum verticillatum - L.
Whorled Water-milfoil
Other Common Names: whorl-leaf watermilfoil
Taxonomic Status: Accepted
Related ITIS Name(s): Myriophyllum verticillatum L. (TSN 27040)
Unique Identifier: ELEMENT_GLOBAL.2.148677
Element Code: PDHAL040D0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Water-Milfoil Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Haloragales Haloragaceae Myriophyllum
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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: Myriophyllum verticillatum
Conservation Status
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NatureServe Status

Global Status: G5
Global Status Last Reviewed: 13May2016
Global Status Last Changed: 11Jun1984
Ranking Methodology Used: Ranked by inspection
Rounded Global Status: G5 - Secure
Reasons: Cosmopolitan. It grows in lakes and ponds throughout the boreal regions of North America, Europe, and Asia.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N5 (16Apr2014)

U.S. & Canada State/Province Status
United States Alaska (S3), Arkansas (SNR), California (SNR), Colorado (S1), Connecticut (SU), Delaware (SU), Florida (SNR), Georgia (SNR), Idaho (SNR), Illinois (SNR), Indiana (S2), Iowa (S1), Louisiana (SNR), Maine (SNR), Maryland (SU), Massachusetts (S1), Michigan (SNR), Minnesota (SNR), Montana (SU), Nebraska (S1), New Hampshire (SNR), New Jersey (SH), New York (S4), North Dakota (SNR), Ohio (S1), Oregon (SNR), Pennsylvania (S1), South Dakota (SNR), Texas (SNR), Utah (S1), Vermont (S2S3), Washington (SNR), West Virginia (SH), Wisconsin (SNR), Wyoming (S1)
Canada Alberta (S3), British Columbia (S4), Labrador (SNR), Manitoba (SU), New Brunswick (S3), Newfoundland Island (S2), Northwest Territories (SNR), Nova Scotia (S2), Nunavut (SU), Ontario (S5), Prince Edward Island (SH), Quebec (S3?), Saskatchewan (S3), Yukon Territory (S3S4)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Widespread in boreal regions of North America, Europe, and Asia. In the United States its southern limit follows a line from Massachusetts through Illinois to Utah. Rediscovered in Colorado (1994) in a lake near Marcelina Pass in the Elk Mountains.

Population Size Comments: Common in primary range.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Widespread in boreal regions of North America, Europe, and Asia. In the United States its southern limit follows a line from Massachusetts through Illinois to Utah. Rediscovered in Colorado (1994) in a lake near Marcelina Pass in the Elk Mountains.

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

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

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
IA Black Hawk (19013), Buchanan (19019), Dickinson (19059)*, Emmet (19063)*, Palo Alto (19147)*, Webster (19187)*
IN Cass (18017), Jasper (18073), Kosciusko (18085), Lagrange (18087), Lake (18089), Porter (18127), Steuben (18151)
MA Berkshire (25003), Franklin (25011)*
NE Cherry (31031)
NJ Cumberland (34011)*, Essex (34013)*, Middlesex (34023)*, Morris (34027)*, Ocean (34029)*, Passaic (34031)*, Sussex (34037)*, Warren (34041)*
OH Summit (39153)
PA Crawford (42039), Erie (42049), Lehigh (42077)*
VT Addison (50001)*, Franklin (50011), Lamoille (50015), Orange (50017), Orleans (50019), Rutland (50021), Windham (50025), Windsor (50027)
WY Fremont (56013), Park (56029)*, Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
01 Upper Connecticut-Mascoma (01080104)+, Black-Ottauquechee (01080106)+, West (01080107)+, Middle Connecticut (01080201)+, Housatonic (01100005)+
02 Hudson-Hoosic (02020003)+, Rondout (02020007)+*, Hackensack-Passaic (02030103)+*, Raritan (02030105)+*, Middle Delaware-Musconetcong (02040105)+*, Lehigh (02040106)+*, Cohansey-Maurice (02040206)+*, Mullica-Toms (02040301)+*
04 Little Calumet-Galien (04040001)+, St. Joseph (04050001)+, Lake Erie (04120200)+, Mettawee River (04150401)+, Lamoille River (04150405)+, Lake Champlain (04150408)+, St. Francois River (04150500)+
05 French (05010004)+, Shenango (05030102)+, Tuscarawas (05040001)+, Middle Wabash-Deer (05120105)+, Tippecanoe (05120106)+
07 Upper Wapsipinicon (07080102)+, Upper Des Moines (07100002)+*, Middle Des Moines (07100004)+*, Kankakee (07120001)+, Iroquois (07120002)+, Chicago (07120003)+
10 Madison (10020007)+*, Upper Wind (10080001)+, Middle Niobrara (10150004)+, Little Sioux (10230003)+*
17 Snake headwaters (17040101)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Habitat Comments: Shallow sluggish water of ponds and streams.
Economic Attributes Not yet assessed
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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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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
  • Aiken, S. G. 1981. A conspectus of Myriophyllum (Haloragaceae) in North America. Brittonia 33:57-69.

  • Aiken, S.G. 1981. A Conspectus of Myriophyllum (Haloragaceae) in North America. Brittonia 33 (1): 57-69. A81AIK01PAUS.

  • Aiken, S.G. 1981. A conspectus of Myriophyllum (Haloragaceae) in North America. Brittonia 33:57-69.

  • Andersen, M.D. and B. Heidel. 2011. HUC-based species range maps. Prepared by Wyoming Natural Diversity Database for use in the pilot WISDOM application operational from inception to yet-to-be-determined date of update of tool.

  • Britton, N. L. and A. B. Brown. 1913. An Illustrated Flora of the Northern United States, Canada, and the British Possessions. 2nd Edition in 3 Volumes. Charles Scribner's Sons, New York. B13BRI01PAUS.

  • Britton, N. L. and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada. 3 vol. Dover Publications, Inc., N. Y. 2052 pp.

  • Dorn, R. D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY.

  • Evert, E. F. 2010. Vascular Plants of the Greater Yellowstone Area: Annotated Catalog and Atlas. Park Ridge, IL.

  • Fassett, Norman C. 1940. A Manual of Aquatic Plants, 1st ed. New York: McGraw-Hill. B57FAS01PAUS.

  • Fassett, Norman C. 1940. A Manual of Aquatic Plants. McGraw- Hill Book Company, New York, New York. 382 p.

  • Fernald, M. L. 1950. Gray's manual of botany. 8th edition. Corrected printing (1970). D. Van Nostrand Company, New York. 1632 pp.

  • 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.

  • Gleason, H.A., and A. Cronquist. 1963. Manual of vascular plants of northeastern United States and adjacent Canada. D. Van Nostrand Company, New York, NY. 810 pp.

  • Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York. 910 pp.

  • 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.

  • Kesonie, D. T. 2009. A floristic inventory of Grand Teton National Park and the Pinyon Peak Highlands, Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie, WY.

  • Kesonie, D. T. and R. L. Hartman. 2011. A floristic inventory of Grand Teton National Park, Pinyon Peak Highlands, and Vicinity, Wyoming, U.S.A. Journal of the Botanical Research Institute of Texas 5:357-388.

  • Linnaeus, C. 1753. Species Plantarum. A fascimile of the first edition printed by Adlard & Son, Bartholomew Press, Dorking, Great Britain. 2 vol. B53LIN01PAUS.

  • Linnaeus, C. 1753. Species Plantarum. First edition printed by Adlard & Son, Bartholomew Press, Dorking, Great Britain. 2 vol.

  • Massatti, R. T. 2007. A floristic inventory of the East Slope of the Wind River Mountain Range and vicinity, Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie, WY.

  • Meades, S.J. & Hay, S.G; Brouillet, L. 2000. Annotated Checklist of Vascular Plants of Newfoundland and Labrador. Memorial University Botanical Gardens, St John's NF. 237pp.

  • Weishaupt, C.G. 1971. Vascular Plants of Ohio, Third Ed. Kendall/Hunt Publishing Co. Dubuque, Iowa. B71WEI01PAUS

  • Weishaupt, C.G. 1971. Vascular Plants of Ohio, Third edition. Kendall/Hunt Publishing Co., Dubuque, Iowa.

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