(Imperata cylindrica)

Cogongrass is a perennial, colony-forming grass that can grow up to 6 ft. (1.8 m) tall.

Imperata cylindrica is an extremely aggressive invader with the capability of invading a range of sites. It forms dense, usually circular infestations that exclude all other vegetation. It is native to Southeast Asia and was accidentally introduced into the southeast United States in packing material in the early 1900s. It was also intentionally introduced for erosion control and livestock forage.

Resources

• Fact Sheet
• Field ID Guide
• Cogongrass in Georgia – Winter 2022 Update
• Identifying & Controlling Cogongrass in GA Publication
• Cogongrass: A New Threat to Georgia Pest Alert
• Georgia’s Cogongrass Task Force Initiative Poster
• Cogongrass in Georgia Poster
• Cogongrass Article in Wildland Weeds