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You are here: Home / Plants / Species Profiles / Cogongrass
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Species Profiles

Cogongrass

Cogongrass - Invasive.org

Scientific name: Imperata cylindrica (L.) P. Beauv.

Synonyms: Imperata arundinacea, Lagurus cylindricus

Common names: Cogongrass, Cogon grass, Japanese bloodgrass, Red Baron grass

Click image to enlarge

Native To: In doubt: East Africa (Evans 1987, 1991); Southeastern Asia; (Holm et al. 1977)

Date of U.S. Introduction: First arrived accidentally in Louisiana in 1912, and it was introduced intentionally to Florida in the 1930s (Bryson and Carter 1993)

Means of Introduction: Used as packing material for imported goods (Tabor 1949); introduced intentionally as forage (Hubbard 1944) and for erosion control (Moorehead et al. 2007)

Impact: Forms dense stands that crowd out native species (Lippincott 1997)

Current U.S. Distribution:

Federally Regulated:

  • Listed as a Federal Noxious Weed under the Plant Protection Act, which makes it illegal in the U.S. to import or transport between States without a permit (USDA, APHIS - Noxious Weeds Program)

Images:

Videos:

  • Cogongrass (or select Play button below)
    University of Florida. (YouTube).

Selected Internet Resources:

Federal Government

Imperata cylindrica (L.) Beauv.
Integrated Taxonomic Information System.
Taxonomy

Imperata cylindrica - Federal Noxious Weed Disseminules of the U.S.
USDA. Animal and Plant Health Inspection Service and California Department of Food and Agriculture.
Identification/Description; Photographs; Habitat; Distribution

Cogongrass - Domestic Programs Pest Evaluation
USDA. APHIS. Plant Protection and Quarantine.
Identification/Description; Distribution; Controls; Legal Aspects

Imperata cylindrica - Germplasm Resources Information Network (GRIN)
USDA. ARS. National Genetic Resources Program.
Taxonomy; Legal Aspects

Imperata cylindrica Article Citation Search - AGRICOLA Database
USDA. National Agricultural Library.
Research; Special Note: NAL Catalog Search (resources)

Cogon Grass - Biological Control of Invasive Plants in the Eastern United States (Aug 2002)
BugwoodWiki.
Published by: USDA. Forest Service. Publication FHTET-2002-04.
Taxonomy; Identification/Description; Photographs; Distribution; Introduction History; Impacts; Life Cycle; Habitat; Controls

Cogongrass - Weed of the Week (Jan 19, 2006; PDF | 225 KB)
USDA. FS. Northeastern Area. Forest Health Protection.
Identification/Description; Photographs; Impacts; Habitat; Distribution; Controls

Imperata brasiliensis, I. cylindrica - Fire Effects Information System (FEIS)
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.
Taxonomy; Identification/Description; Photographs; Impacts; Life Cycle; Habitat; Distribution; Controls; Legal Aspects; Special Note: References

Cogongrass - A Field Guide for the Identification of Invasive Plants in Southern Forests
USDA. FS. Southern Research Station.; Bugwood Wiki.
Identification/Description; Photographs; Life Cycle; Distribution; Controls

Cogongrass (PDF | 301 KB)
USDA. Natural Resources Conservation Service.
Identification/Description; Photographs; Introduction History; Impacts; Controls; Legal Aspects

PLANTS Database - Congongrass
USDA. NRCS. National Plant Data Center.
Taxonomy; Photographs; Distribution; Legal Aspects

Cogongrass Alert
DOI. National Wetlands Research Center. Coastal Prairie Research Program.
Identification/Description; Photographs; Impacts; Controls

Imperata cylindrica - Indian River Lagoon (Florida) Species Inventory
Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Dispersion

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State Government

Cogongrass
Alabama Forestry Commission.
Identification/Description; Photographs; Controls

Cogon Grass
Florida Department of Agriculture and Consumer Services. Florida Forest Service.
Identification/Description; Photographs; Controls; Legal Aspects

Weed Alert: Cogon Grass (PDF | 219 KB)
Florida Department of Environmental Protection. Bureau of Invasive Plant Management.
Identification/Description; Photographs; Illustrations; Impacts

Cogongrass in Georgia
Georgia Forestry Commission.
Identification/Description; Photographs; Introduction History; Distribution; Controls

Cogongrass
Mississippi Department of Agriculture and Commerce. Bureau of Plant Industry.
Identification/Description; Photographs; Distribution; Controls

Cogongrass (PDF | 682 KB)
South Carolina Forestry Commission.
Identification/Description; Photographs

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University/Academic

Stop Cogongrass Hitchhikers (PDF | 273 KB)
Alabama Cooperative Extension System.
Identification/Description; Photographs; Dispersion; Controls

Cogongrass: A Potentially Invasive Weed in Arkansas (PDF | 460 KB)
University of Arkansas. Agriculture and Natural Resources.
Identification/Description; Photographs; Introduction History; Distribution; Controls

Wanted Dead not Alive: Cogongrass
Auburn University.
Identification/Description; Impacts; Habitat; Controls

Imperata cylindrica - Identification and Biology of Non-Native Plants in Florida's Natural Areas (PDF | 79 KB)
University of Florida.
Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Distribution; Dispersion

Cogongrass (Imperata cylindrica (L.) Beauv.) Biology, Ecology and Management in Florida
University of Florida. Institute of Food and Agricultural Sciences.
Identification/Description; Introduction History; Distribution; Dispersion; Controls

Cogongrass
University of Florida. IFAS. Center for Aquatic and Invasive Plants.
Identification/Description; Photographs; Introduction History; Impacts; Habitat; Distribution; Controls

Cogongrass - Invasive Plant Atlas of the United States
University of Georgia. Center for Invasive Species and Ecosystem Health.
Taxonomy; Identification/Description; Photographs; Introduction History; Distribution

Cogongrass
University of Georgia. Center for Invasive Species and Ecosystem Health.
Identification/Description; Photographs; Distribution; Controls

Cogongrass - Invasive Plant Atlas of the MidSouth
Mississippi State University. GeoResources Institute.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Habitat; Distribution; Dispersion; Controls; Legal Aspects

Cogongrass Identification Guide (PDF | 2.8 MB)
Clemson University Extension.
Identification/Description; Photographs; Impacts

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International

Imperata cylindrica - Invasive Species Compendium
Centre for Agricultural Bioscience International (CABI).
Taxonomy; Identification/Description; Photographs; Impacts; Life Cycle; Habitat; Distribution; Controls

Imperata cylindrica (grass) - ISSG Global Invasive Species Database
World Conservation Union. Invasive Species Specialist Group.
Taxonomy; Identification/Description; Impacts; Life Cycle; Habitat; Distribution; Controls

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Organizations

Cogongrass in Alabama (PDF | 165 KB)
Alabama Invasive Plant Council.
Introduction History; Impacts; Distribution; Controls

Cogongrass
Guide to Invasive Plants of the Galveston Bay Area.
Identification/Description; Photographs; Impacts; Distribution; Controls

Imperata cylindrica
Pacific Island Ecosystems at Risk.
Identification/Description; Photographs; Habitat; Distribution; Dispersion; Controls

Cogon Grass
Plant Conservation Alliance. Alien Plant Working Group.
Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Dispersion; Controls

Imperata cylindrica
TexasInvasives.org.
Taxonomy; Identification/Description; Photographs; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Controls

Citations

Bryson, C.T. and R. Carter. 1993. Cogongrass, Imperata cylindrica, in the United States. Weed Technology 7: 1005-1009.

Evans, H.C. 1987. Fungal pathogens of some subtropical and tropical weeds and the possibilities for biological control. Biocontrol News and Information 8: 7-30.

Evans, H.C. 1991. Biological control of tropical grassy weeds, pp. 52-72. In Baker, F. W. G. and P. J. Terry (eds.). Tropical Grassy Weeds. Centre for Agricultural Bioscience International (CABI), Wallingford, United Kingdom.

Holm, L.G., D.L. Plucknett, J.V. Pancho, and J.P. Herberger. 1977. The World’s Worst Weeds: Distribution and Biology. University Press of Hawaii. Honolulu, Hawaii, USA.

Hubbard, C.E. 1944. Imperata cylindrica. Taxonomy, Distribution, Economic Significance, and Control. Imp. Agric. Bur. Joint Publ. No. 7, Imperial Bureau Pastures and Forage Crops, Aberystwyth, Wales. Great Britton. 53 p.

Lippincott, C.L. 1997. Ecological consequences of Imperata cylindrica (cogongrass) invasion in Florida sandhill. Ph.D. dissertation, University of Florida, Gainesville, Florida, USA.

Moorehead, D.J., C.T. Bargeron, and G.K. Douce. 2007. Cogongrass Distribution and Spread Prevention (PDF | 213 KB). In Proceedings of the Regional Cogongrass Conference: Cogongrass Management Guide. Mobile, Alabama.

Tabor, P. 1949. Cogongrass, Imperata cylindrica (L.) Beauv., in the southeastern United States. Agron. J. 41:270.

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Last Modified: Jul 01, 2014
 
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