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Acroptilon repens (L.) DC.
hardheads
Symbol: ACRE3
Group: Dicot
Family: Asteraceae
Growth Habit: Forb/herb
Duration: Perennial
U.S. Nativity: Introduced

Printer-Friendly Profile of Acroptilon repens Printer-Friendly Version
Classification Distribution Images Invasive Links More Info Noxious Related Taxa Synonyms Wetland
Plant Synonyms:
ACRE3 Acroptilon repens (L.) DC.
 

CEPI3

Centaurea picris Pallas ex Willd.
 

CERE6

Centaurea repens L.
More Information
About hardheads

Link to plant Classification report for Acroptilon repens

Plant source and reference for Acroptilon repens

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State Distributional Map for ACRE3
© Image generated using gd 1.8
Plant Distribution by State

Acroptilon repens (L.) DC.

ACRE3

See county distributions for the following states by clicking on them below or on the map.

CA IL KS
KY MI MO
ND SD UT*
WI*
* Offsite source.
Arizona
Arkansas
California
Colorado
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Michigan
Minnesota
Missouri
Montana
Nebraska
Nevada
New Mexico
North Dakota
Ohio
Oklahoma
Oregon
South Dakota
Texas
Utah
Washington
Wisconsin
Wyoming

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Kansas distribution information South Dakota distribution information Michigan distribution information Illinois distribution information Utah distribution information linked offsite at Utah State University Wisconsin distribution information linked offsite at University of Wisconsin Madison North Dakota distribution information Kentucky distribution information California distribution information Missouri distribution information
Related Taxa:
Acroptilon repens (L.) DC.

View 440 genera in Asteraceae, 1 species in Acroptilon

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Classification:
Acroptilon repens (L.) DC.

Click on a scientific name below to expand it in the PLANTS Classification Report.
   
    Kingdom Plantae – Plants
       Subkingdom Tracheobionta – Vascular plants
          Superdivision Spermatophyta – Seed plants
             Division Magnoliophyta – Flowering plants
                Class Magnoliopsida – Dicotyledons
                   Subclass Asteridae –
                      Order Asterales –
                         Family Asteraceae – Aster family
                            Genus Acroptilon Cass. – hardheads
                               Species Acroptilon repens (L.) DC. – hardheads

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Noxious Weed Information:
Acroptilon repens (L.) DC.
This plant and the synonyms italicized and indented below are 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.
Alaska:
    Centaurea repens L.
        Russian knapweed     Noxious weed
Arizona:
        Russian knapweed     Prohibited noxious weed
        Russian knapweed     Restricted noxious weed
California:
        Russian knapweed     B list (noxious weeds)
Colorado:
    Centaurea repens L.
        Russian knapweed     Noxious weed
Hawaii:
        Russian knapweed     Noxious weed
Idaho:
    Centaurea repens L.
        Russian knapweed     Noxious weed
Iowa:
    Centaurea repens L.
        Russian knapweed     Primary noxious weed
Kansas:
    Centaurea repens L.
        Russian knapweed     Noxious weed
Montana:
    Centaurea repens L.
        Russian knapweed     Category 1 noxious weed
Nevada:
    Centaurea repens L.
        Russian knapweed     Noxious weed
New Mexico:
        Russian knapweed     Class B noxious weed
North Dakota:
        Russian knapweed     Noxious weed
Oregon:
        Russian knapweed     "B" designated weed
        Russian knapweed     Quarantine
South Carolina:
    Centaurea repens L.
        Russian knapweed     Plant pest
South Dakota:
    Centaurea repens L.
        Russian knapweed     Noxious weed
        Russian knapweed     Regulated non-native plant species
Utah:
    Centaurea repens L.
        Russian knapweed     Noxious weed
Washington:
        Russian knapweed     Class B noxious weed
Wyoming:
    Centaurea repens L.
        Russian knapweed     Noxious weed

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Invasive Information:
Acroptilon repens (L.) DC.
        Russian knapweed
        hardheads
        Turestan thistle
    Centaurea repens L.
        Russian knapweed
        hardheads
This plant and the synonyms italicized and indented above are listed as invasive weeds by 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 invasive plant list, or click here for a composite list of Invasive Plants of the U.S.
STATE   Assorted authors. 200_. State Noxious Weed Lists for 45 States. State agriculture or natural resource departments.
 
NE&GP;   Stubbendieck, J., G.Y. Friisoe, & M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.. 589pp.
 
SWSS   Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society. Champaign, Illinois..
 
WSWS   Whitson, T.D. (Ed.) et al.. 1996. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming.. 630pp.
 

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Introduced Information:
Acroptilon repens (L.) DC.
This plant is introduced to the United States from another country or countries. Click on link below for a partial or complete list of U.S. introduced plants.

List of Invasive PlantsScientific Name = A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T| U| V| W| X| Y| Z| all
List of Invasive PlantsCommon Name = A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T| U| V| W| X| Y| Z| all
Note: The complete introduced plant report is 1.4 MB. Download and display times may take 3 to 12 minutes depending on your internet connection, internet traffic, your computer and browser. It may appear your computer has locked up. Task manager may report that Netscape is 'Not Responding'. Typically, Netscape is formatting the report for display, and if you are patient, the final report will appear.

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Other Species Accounts and Images:
Acroptilon repens (L.) DC.

View species account from USDA Forest Service Fire Effects Information System (FEIS).
View species account from ARS Germplasm Resources Information Network (GRIN).
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 36459.
View species account or photographs from Wisconsin State Herbarium (UW-Madison).

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Related Web Sites:
Acroptilon repens (L.) DC.

    AZ-Arizona Department of Transportation
    Arizona: abstract & image of Russian knapweed (Acroptilon repens)
    British Columbia Ag. & Food, Crop Protection Program
    CA-California Encycloweedia
    CA-UC IPM Online
    CO-CSU Extension Fact Sheet
    CO-Douglas County Weed Education
    Idaho One Plan: noxious abstract & images
    KS-Noxious Weeds in Kansas
    Knapweeds, starthistles, & basketflowers of New Mexico
    MT-Center for Invasive Plant Management
    MT-Center for Invasive Plant Management
    ND-Know Your Knapweeds (NDSU Extension)
    NV-Extension Weed Wanted Posters
    SD-Northern State University
    Saskatchewan Agriculture and Food: weed identification
    The Nature Conservancy: Wildland Weeds Management & Research Program
    USDA NRCS Plant Materials
    UT-DOT Unwanted Weeds (images & abstracts)
    UT-Utah's 17 Most Noxious Weeds
    Victoria - Natural Resources & Environment: Landcare Notes
    WA-Washington Noxious Weed Control Board

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