Extensively established species are those found in 8 or more of the 13 drainage basins of Louisiana. Locally Established Species are those found in 3 to 7 drainage basins, and Potential Arrivals are plants found in 2 or fewer drainages. Some examples of Extensively Established Species are as follows: Water Hyacinth , introduced in 1885 at world’s industrial and cotton centennial exposition in New Orleans, Louisiana as an ornamental plant . A native of South American known for its beautiful flowers can be found in almost all the drainage basin of the state. Parrot feather , a submerged aquatic plant from Amazon River basin of South America, was first discovered in the United States in 1890 at a Washington, D.C pond. It is a popular aquatic gardens plant that probably escaped cultivation through aquarium deliveries into open water bodies. Hydrilla , a rooted, aquatic weed from Asia that inhabits both deep and shallow waters. First observation in Louisiana was in 1973. It sometimes made several water bodies to be unusable for aquatic recreation cannabis vertical farming, for example, Spring Bayou Wildlife Management Area and Henderson Lake in the Atchafalaya Basin has experienced excessive growth of hydrilla plant.

Brazilian Waterweed , introduced to Louisiana in 1960, Brazilian waterweed is a popular aquarium plant because of its oxygenating properties. Some researchers believe this oxygenator plant can be used in control of mosquito larvae. Eurasian Watermilfoil , first observation in Louisiana was in 1973, it is unique because of its ability to tolerate both fresh and brackish waters. Its rapid spread throughout the state could be due to its use as packing material for bait worms sold to fishermen. Water Lettuce , a perennial floating plant from Africa was first observed in the state in 1958. The plant is listed on Federal Noxious Weed List, but it can still be purchased through aquarium suppliers and on the Internet. Common Salvinia , is a floating fern from central and southern America. It was first recorded in Louisiana in 1980 in the Bayou Teche area of St. Mary Parish, and has since been constituting a major nuisance throughout the state especially for farmers. Common salvinia forms thick mats on the water surface and can be up to 25 centimeters deep in some cases . Locally Established Species example is Giant Salvinia , first appeared in Louisiana in 1998 in the Toledo Bend Reservoir. Since then, it expanded into at least 43 locations throughout Southern Louisiana. It is a free-floating fern that reproduces quickly under ideal conditions such as nutrient availability and warmer temperatures.

In Cameron Parish, Louisiana, giant salvinia posed a public health threat because it blocked the operation of floodgates . An example of Potential Arrival Species is Purple Loosestrife , is an invasive plant introduced from Europe in the 1800s as an ornamental plant. A single mature loosestrife plant can produce an estimated 3 million seeds annually. These seeds are prone to wind, animal, and water dispersal. It is an easy-to-grow plant with attractive purplish-magenta flowers that can be purchased in many plant nurseries, and garden stores. United States Department of Agriculture Early Detection and Distribution Mapping system  was used to collate number of positive observations for all the aquatic invasive species in Louisiana. United States Geological Survey Non-indigenous aquatic species  database was used to collate each species years of first and last observations and number of affected HUC in Louisiana State . The collated data were recorded and formatted using Excel spreadsheet. The analyses of the data were done using Excel software to generate different charts. Also, reports from 2005 Louisiana Statewide management plan,cannabis drying racks 2015 reports of Michigan Lake and Stream Association and 2018 Army Corp of Engineers on Aquatic Plant Control Research Program of coastal Louisiana were used to support data from USDA and USGS databases.

The collated data from USGS and USDA EMM Maps shows earliest date of observation of invasive aquatic plant in Louisiana from 1884 as shown in Table 1 and Figure 6 combo chart. Common Water hyacinth has the highest number of observations till date as shown by Figure 4. About 41 hydrological unit areas have been affected by infestation of Alligator weed as depicted by Figure 5. Over 30 invasive aquatic plants species have been documented in the state of Louisiana . Some of them have been eradicated after their first observation.There is progressive increase in the number of observed locations, HUC and specie establishment from the 2005 report of Louisiana Invasive Aquatic species task force and 2018 report of US Army Corp of Engineers . According to combo chart of Figure 6, only feathered mosquito fern and crested floating heart species have achieved a form of eradication with no new observed locations.