Practical information to identify and manage non-native, invasive plants
The Quiet Invasion:A Guide to Invasive Plants of the Galveston Bay Area
Below is a list of species that belong in the list Prohibited Exotic Species (Texas Parks and Wildlife Department).
 Alligatorweed, pigweed Alternanthera philoxeroides |  Common water hyacinth Eichhornia crassipes |  Eurasian watermilfoil Myriophyllum spicatum |  Giant salvinia, kariba weed; Common salvinia, water spangles Salvinia molesta; Salvinia minima |
 Hydrilla, waterthyme, Florida elodea Hydrilla verticillata |  Melaleuca, punktree, cajeput, Australian paperback Melaleuca quinquenervia |  Rooted water hyacinth Eichhornia azurea |  Water lettuce Pistia stratiotes |
 Water spinach, swamp morning-glory Ipomoea aquatica |