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Photographer: John D. Byrd
Source: Mississippi State University
Cover photo: Chris Evans


Imperata cylindrica

Origin: Native to Southeast Asia

Impact: Cogongrass has been ranked as one of the ten worst weeds of the world. It can invade and overtake disturbed ecosystems, forming a dense mat that makes it nearly impossible for other plants to coexist. Large infestations can alter the normal fire regime of a fire-driven ecosystem by causing more frequent and intense fires that injure or destroy native plants.

Learn More: Species Profile.

Report Form

If you have spotted Imperata cylindrica (Cogongrass), use this report form to send an email to the appropriate authorities. All fields marked with an asterisk (*) are required.

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Enter Latitude and Longitude in decimal degrees or Click the Choose Location button and navigate to the point where the specimen was observed on the Google Map to automatically enter Latitutde and Longitude.

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