MATWEED

matweed. Matweed, n. a species of plant, lygeum

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Mat″weed′ (?), n. (Bot.) A name of several maritime grasses, as the sea sand-reed (Ammophila arundinacea) which is used in Holland to bind the sand of the seacoast dikes (see Beach grass, under Beach); also, the Lygeum Spartum, a Mediterranean grass of similar habit.