Myriophyllum heterophyllum Michx.
twoleaf watermilfoil
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Click on the image below to enlarge it and download a high-resolution
JPEG file.
Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.
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Images:
Myriophyllum heterophyllum Michx.
Click on a thumbnail to view an image, or
see all the Myriophyllum thumbnails at the PLANTS Gallery
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Distribution:
Myriophyllum heterophyllum Michx.
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See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, WI, WV), CAN (BC, NB, ON, QC) |
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Related Taxa:
Myriophyllum heterophyllum Michx.
View
4 genera in Haloragaceae,
14 species in Myriophyllum
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Classification:
Myriophyllum heterophyllum Michx.
Click on a scientific name below to expand it in the PLANTS
Classification Report.
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Threatened and Endangered Information:
Myriophyllum heterophyllum Michx.
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists.
Click on a place name to get a complete protected plant
list for that location.
| Kentucky: |
| broadleaf water-milfoil |
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Special Concern |
| Ohio: |
| two-leaved water-milfoil |
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Endangered |
| Pennsylvania: |
| broad-leaved water-milfoil |
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Endangered |
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Noxious Weed Information:
Myriophyllum heterophyllum Michx.
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place
name to get a complete noxious weed list for that location,
or click here for a composite list of all
Federal and State Noxious Weeds.
| Connecticut: |
| variable-leaf watermilfoil |
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Invasive, banned |
| Maine: |
| variable-leaf water milfoil |
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Invasive aquatic plant |
| Massachusetts: |
| variable water-milfoil, two-leaved water-milfoil |
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Prohibited |
| Vermont: |
| variable-leaved milfoil |
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Class A noxious weed |
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U.S. Weed Information:
Myriophyllum heterophyllum Michx.
variable-leaved milfoil
This plant can be weedy or invasive according to the authoritative sources noted below. This plant
may be known by one or more common names in different
places, and some are listed above. Click on an acronym
to view each weed list, or click here for a
composite list of Weeds of the U.S.
| STATE |
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Assorted authors.
200_.
State noxious weed lists for 46 states.
State agriculture or natural resource departments.
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Wetland Indicator Status:
Myriophyllum heterophyllum Michx.
| Nat. Ind. |
Reg. 1 |
Reg. 2 |
Reg. 3 |
Reg. 4 |
Reg. 5 |
Reg. 6 |
Reg. 7 |
Reg. 8 |
Reg. 9 |
Reg. 0 |
Reg. A |
Reg. C |
Reg. H |
| OBL |
OBL |
OBL |
OBL |
OBL |
OBL |
OBL |
OBL |
NO |
NO |
NO |
NO |
NO |
NO |
Interpreting Wetland Indicator Status
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More Accounts and Images:
Myriophyllum heterophyllum Michx.
View species account and distribution from USF Atlas of Florida Vascular Plants.
View species account from ARS Germplasm Resources Information Network (GRIN).
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 27044.
View species account from Lady Bird Johnson Wildflower Center Native Plant Information Network (NPIN).
View photographs and distribution from University of Tennessee Herbarium.
View species account and photographs from University of Wisconsin - Stevens Point Freckmann Herbarium.
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Related Web Sites:
Myriophyllum heterophyllum Michx.
Invasive Plant Atlas of New England
NC-Aquatic Weed Fact Sheet (NCSU)
TX-Submerged Plants (TAES)
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