There are a few synonyms for the plant species known as Genus Hydrilla. Some common names include oxygen weed, waterthyme, and waterweed. This submerged aquatic plant is considered an invasive species in many parts of the world, often outcompeting native aquatic plants and disrupting aquatic ecosystems. Despite its negative reputation, Hydrilla has been used for various purposes, such as a food source for ducks and as an oxygenating plant in aquariums. Although it is important to control and manage Hydrilla populations to protect native species, it is also significant to understand its ecological role in aquatic environments.