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Wild celery (Vallisneria americana L.) has coexisted with the dominant species hydrilla (Hydrilla verticillata (L.f.) Royle) since the resurgence of submersed aquatic vegetation in the tidal Potomac River in 1983.
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Introduction........................................................................................................ 1 1.1 Purpose of the Master Plan ........................................................................ 1 1.2 Park History..........................................
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Geology is more than the study of rocks as inanimate objects. Some of the oldest and most interesting applications of geology involve interactions between humans and the noble wine grape, Vitis vinifera. A stone chapel looks out over the Red Willow Vineyard in Washington.
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