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Date: 2006-03-15 00:15:58Botany Biology Hydrilla Salvinia molesta Salvinia Myriophyllum spicatum Alternanthera philoxeroides Water hyacinth Ampullariidae Aquatic plants Flora Invasive plant species | Aquatic Pests: Introduced from Aquariums and Water GardensDocument is deleted from original location. Download Document from Web Archive |