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Cogongrass, Imperata cylindrical (L.) P. Beauv., is often categorized as one of the
top 10 worst weeds in the world and is perhaps the worst potential invader on our
borders. Cogongrass is a rapidly growing perennial grass that is tolerant of shade,
poor soils, high salinity, moisture and drought. Cogongrass can invade pastures,
natural or planted forests, riparian areas, highway rights-of-way, urban areas, and
wetlands. It is native to Southeast Asia and was introduced into the U.S. in 1911
near Mobile, Alabama, as packing material in shipping containers.
Image: Chris Evans, University of Illinois, Bugwood.org
Learn to identify cogongrass
Image: Wilson Faircloth, USDA Agricultural Research Service, Bugwood.org
Image: Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org
Find out how cogongrass will impact you
Image: Terry English, USDA APHIS PPQ, Bugwood.org
Learn what you can do to stop cogongrass
Find out how close cogongrass is to YOU
Cogongrass Distribution and Spread Prevention
Cogongrass: A New Threat to Georgia
Cogongrass: [Imperata cylindrical (L.) Beauv.]
Stop Cogongrass Hitchhikers
Field Guide to the Identification of Cogongrass
Mapping, Control, and Revegetation of Cogongrass Infestations on Alabama Right-of-Way
Invasive Plant Atlas of the United States - Cogongrass
Cogongrass on a Roadside