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Cyperus iria L.
ricefield flatsedge
Symbol: CYIR
Group: Monocot
Family: Cyperaceae
Growth Habit: Graminoid
Duration: Annual
U.S. Nativity: Introduced
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Click on this Photograph of Cyperus iria to enlarge it and download a high-resolution JPEG file ©Larry Allain. USGS NWRC. Usage Guidelines.

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Classification Distribution Images Invasive Links More Info Noxious Related Taxa Synonyms Wetland
Plant Images:

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More Information
About ricefield flatsedge

Link to plant Classification report for Cyperus iria

Plant source and reference for Cyperus iria

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

Cyperus iria L.

CYIR

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

AR FL* GA
IL KY MO
NC SC TN*
VA
* Offsite source.
Alabama
Arkansas
Delaware
Florida
Georgia
Illinois
Kentucky
Louisiana
Maryland
Mississippi
Missouri
North Carolina
Oklahoma
Pennsylvania
Puerto Rico
South Carolina
Tennessee
Texas
Virginia
West Virginia

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North Carolina distribution information Illinois distribution information Virginia distribution information Kentucky distribution information Missouri distribution information Tennessee distribution information linked offsite at Univerity of Tennessee Herbarium Arkansas distribution information South Carolina distribution information Georgia distribution information Florida distribution information linked offsite at USF Atlas of Florida Vascular Plants
Related Taxa:
Cyperus iria L.

View 35 genera in Cyperaceae, 125 species in Cyperus

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Classification:
Cyperus iria L.

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 Liliopsida – Monocotyledons
                   Subclass Commelinidae –
                      Order Cyperales –
                         Family Cyperaceae – Sedge family
                            Genus Cyperus L. – flatsedge
                               Species Cyperus iria L. – ricefield flatsedge

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Invasive Information:
Cyperus iria L.
        ricefield flatsedge
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.
SWSS   Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society. Champaign, Illinois.
 

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Introduced Information:
Cyperus iria L.
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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Wetland Indicator Status:
Cyperus iria L.
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
FACW,FACW+ FACW FACW FACW NO NO FACW NO NO NO NO NO FACW FACW+

Wetland Data InformationInterpreting wetland indicator status

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Other Species Accounts and Images:
Cyperus iria L.

View species account 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 39934.
View photographs from University of Tennessee Herbarium.

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