Phragmites australis (Cav.) Trin. ex Steud.
Family: Poaceae
common reed, common reed grass
Phragmites australis image
Steve C. Garske  
Etymology: Phragmites: from Greek phragma, "a fence or screen, hedge," hence growing in hedges
Plants: erect, perennial, 3 1/5 - 16' tall, semi-aquatic, emergent grass, dense stands; stout rhizomes with summer forming buds
Leaves: narrow to 30" long; gray-green
Flowers: light brown to purple; inflorescence spreading spikelet of 3-7 florets with silky hairs; blooms July-Sept.
Habitat: shores, disturbed areas, water to 40" deep; in sediment soil
Invasiveness: Restricted Invasive - Eradicate!
Conservation Status: Native - potentially invasive