Photo credit: Leslie J. Mehrhoff, University of Connecticut,

What is it?

A tall wetland grass species


Where's it from?

Regional genetic variations are found in many parts of the world, including the U.S.


How did it get here?

At least one European variety was introduced into the U.S., most likely in the 1800s. It is far more aggressive than the native genetic varieties and has become a serious invader of brackish wetlands in eastern and Midwestern states.


Where is it now?

The invasive Phragmites is abundant along the east coast. The Virginia Department of Conservation and Recreation recently mapped over 2300 acres of Phragmites that has invaded wetlands on the seaside and barrier islands of Virginia's Eastern Shore.


What's the harm?

Phragmites overwhelms other marsh plant species from above and below with tall stems that may be 15 feet in height and fast growing underground stems that form new shoots and a thick tangled root mat. By forming tall dense stands with few other plant species, Phragmites creates a habitat that lacks value to wildlife.


What's being done?

Once established, it is very difficult and expensive to control. In Virginia, state and federal agencies have partnered with The Nature Conservancy, local governments, and private landowners to control Phragmites at priority natural areas.


How can I learn more?

View the DCR Natural Heritage Phragmites management brochure here >>.