any of several tall grasses of the genus Phragmites, having plumed heads, growing in marshy areas, especially the common reed P. australis (or P. communis).
Origin: < Neo-Latin (1820) < Greek phragmī́tēs growing in hedges, equivalent to phrágm(a) fence, breastwork, screen (noun derivative of phrássein (Attic phráttein) to fence in, hedge around) + -ītēs-ite1