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Emex australis Steinh.
southern threecornerjack
Symbol: EMAU
Group: Dicot
Family: Polygonaceae
Growth Habit: Forb/herb
Duration: Annual
U.S. Nativity: Introduced

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More Information
About southern threecornerjack

Link to plant Classification report for Emex australis

Plant source and reference for Emex australis

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

Emex australis Steinh.

EMAU

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

CA
California

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California distribution information
Related Taxa:
Emex australis Steinh.

View 30 genera in Polygonaceae, 2 species in Emex

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Classification:
Emex australis Steinh.

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 Caryophyllidae –
                      Order Polygonales –
                         Family Polygonaceae – Buckwheat family
                            Genus Emex Campd. – threecornerjack
                               Species Emex australis Steinh. – southern threecornerjack

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Noxious Weed Information:
Emex australis Steinh.
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.
United States:
        three-cornered jack     Noxious weed
Alabama:
        three-cornered jack     Class A noxious weed
California:
        three-cornered jack     Quarantine
Florida:
        three-cornered jack     Noxious weed
Massachusetts:
        three-cornered jack     Noxious weed
Minnesota:
        three-cornered jack     Prohibited noxious weed
North Carolina:
        southern threecornerjack     Class A noxious weed
Oregon:
        three-cornered jack     Quarantine
South Carolina:
        three-cornered jack     Plant pest
Vermont:
        three-cornered jack     Class A noxious weed

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Invasive Information:
Emex australis Steinh.
        three-cornered jack
This plant is considered invasive 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.
US   Plant Protection and Quarantine. 2002. Federal Noxious Weed List (http://www.aphis.usda.gov/ppq/bats/noxweed.html, October 20, 2003). USDA Animal and Plant Health Inspection Service. Washington, DC. 2pp.
 
STATE   Assorted authors. 200_. State Noxious Weed Lists for 43 States. State agriculture or natural resource departments.
 

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Introduced Information:
Emex australis Steinh.
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:
Emex australis Steinh.

View species account from ARS Germplasm Resources Information Network (GRIN).
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 21052.

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Related Web Sites:
Emex australis Steinh.

    CSIRO: Weed Management News Sheet (Australia)

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