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

Cogongrass - Invasive.org

Scientific name: Imperata cylindrica (L.) Raeusch. (ITIS)

Synonyms: Imperata arundinacea, Lagurus cylindricus

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

Click image to enlarge

Selected Resources

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 Resources:

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Council

Cogongrass in Alabama (PDF | 165 KB)
Alabama Invasive Plant Council.

Why Should I Care About Cogongrass?
Georgia Invasive Species Task Force.

Partnership

Invasive Plant Atlas of the United States - Cogongrass
University of Georgia. Center for Invasive Species and Ecosystem Health.

Texas Invasives Database - Imperata cylindrica
TexasInvasives.org.

Invasive Species Compendium - Imperata cylindrica
CAB International.

Global Invasive Species Database - Imperata cylindrica (grass)
World Conservation Union. Invasive Species Specialist Group.

Government

Imperata cylindrica - Federal Noxious Weed Disseminules of the U.S.
USDA. Animal and Plant Health Inspection Service and California Department of Food and Agriculture.

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

Imperata brasiliensis, I. cylindrica - Fire Effects Information System (FEIS)
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

Cogongrass (PDF | 301 KB)
USDA. Natural Resources Conservation Service.

PLANTS Database - Congongrass
USDA. NRCS. National Plant Data Center.

Indian River Lagoon Species Inventory - Imperata cylindrica
Smithsonian Institution. Smithsonian Marine Station at Fort Pierce.

State

Cogongrass
Alabama Forestry Commission.

Cogon Grass
Florida Department of Agriculture and Consumer Services. Florida Forest Service.

Weed Alert: Cogon Grass (PDF | 219 KB)
Florida Department of Environmental Protection. Bureau of Invasive Plant Management.

Cogongrass in Georgia
Georgia Forestry Commission.

Academic

Stop Cogongrass Hitchhikers (PDF | 273 KB)
Alabama Cooperative Extension System.

Cogongrass: A Potentially Invasive Weed in Arkansas (PDF | 460 KB)
University of Arkansas. Agriculture and Natural Resources.

Cogongrass (Imperata cylindrica (L.) Beauv.) Biology, Ecology and Management in Florida
University of Florida. Institute of Food and Agricultural Sciences.

Cogongrass
University of Florida. IFAS. Center for Aquatic and Invasive Plants.

Cogongrass
University of Florida. IFAS Extension. Solutions for Your Life.

Cogongrass
University of Georgia. Center for Invasive Species and Ecosystem Health.

Invasive Plant Atlas of the MidSouth - Cogongrass
Mississippi State University. GeoResources Institute.

Cogongrass Identification Guide (PDF | 2.8 MB)
Clemson University Extension.

Professional

Cogongrass
Guide to Invasive Plants of the Galveston Bay Area.

Imperata cylindrica
Pacific Island Ecosystems at Risk.

Cogon Grass
Plant Conservation Alliance. Alien Plant Working Group.

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. CAB International, 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.

Integrated Taxonomic Information System. Imperata cylindrica. [Accessed Sep 10, 2014].

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: Apr 17, 2015
 
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