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Myriophyllum heterophyllum . Michx
VARIOUS-LEAVED WATER-MILFOIL
Twoleaf watermilfoil

Life   Plantae   Dicotyledoneae   Haloragaceae   Myriophyllum

Myriophyllum heterophyllum
© Les Mehrhoff, 2008-2010 · 3
Myriophyllum heterophyllum

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Myriophyllum heterophyllum
© Les Mehrhoff, 2008-2010 · 2
Myriophyllum heterophyllum
Myriophyllum heterophyllum
© Les Mehrhoff, 2008-2010 · 1
Myriophyllum heterophyllum

Myriophyllum heterophyllum
© Les Mehrhoff, 2008-2010 · 1
Myriophyllum heterophyllum
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Following modified from Plants Database, United States Department of Agriculture
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https://plants.usda.gov/java/profile?symbol=MYHE2 ---> http://plants.usda.gov/core/profile?symbol=MYHE2
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You are here: Home / Plant Profile

Myriophyllum heterophyllum Michx.
twoleaf watermilfoil

Image of Myriophyllum heterophyllum

General Information
Symbol: MYHE2
Group: Dicot
Family: Haloragaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Myriophyllum thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species . Northeast National Technical Center, Chester. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 616. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .

slideshow

Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Rosidae
Order Haloragales
Family Haloragaceae – Water Milfoil family
Genus Myriophyllum L. – watermilfoil
Species Myriophyllum heterophyllum Michx. – twoleaf watermilfoil

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
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 Special Concern
Ohio two-leaved water-milfoil Endangered
Pennsylvania broad-leaved water-milfoil Endangered
Noxious Weed Information
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 Invasive, banned
Maine variable-leaf water milfoil Invasive aquatic plant
Massachusetts variable water-milfoil, two-leaved water-milfoil Prohibited
Vermont variable-leaved milfoil Class A noxious weed
U.S. Weed Information
Myriophyllum heterophyllum 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 Assorted authors. State noxious weed lists for 46 states . State agriculture or natural resource departments.

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL
Northcentral & Northeast OBL
Western Mountains, Valleys, and Coast OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (MYHE2)
Integrated Taxonomic Information System (MYHE2)
Lady Bird Johnson Wildflower Center Native Plant Information Network (MYHE2)
USF Atlas of Florida Vascular Plants (MYHE2)
University of Tennessee Herbarium (Distribution) (MYHE2)
University of Wisconsin - Stevens Point Freckmann Herbarium (MYHE2)
Related Websites
Invasive Plant Atlas of New England (MYHE2)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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