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Phragmites field guide: distinguishing native and exotic ...
www.nrcs.usda.govTN Plant Materials NO. 56 October 2012 . PHRAGMITES FIELD GUIDE: DISTINGUISHING NATIVE AND EXOTIC FORMS OF COMMON REED (PHRAGMITES AUSTRALIS) IN THE UNITED STATES . Jill Swearingen, Invasive Species Coordinator, National Park Service . Kristin Saltonstall, Associate Scientist, Smithsonian Tropical Research Institute