Esthwaite Waterweed
Hydrilla verticillata (L.f.) Royle

Hydrilla verticillata (L.f.) Royle is a species in the Hydrocharitaceae family, commonly known as Esthwaite Waterweed. It was first described in 1839 and is found across multiple regions including the Afrotropical, Australasian, Oriental (Indomalaya), and Palaearctic realms, as well as in specific locations such as Colombia, Belgium, France, The Netherlands, and Great Britain.
Description
Hydrilla verticillata is a member of the Hydrocharitaceae family, a group of aquatic plants. It is widely distributed across several biogeographic regions, including the Afrotropical, Australasian, Oriental (Indomalaya), and Palaearctic. Specific records include the Distrito Regional de Manejo Integrado (DRMI) Laguna de Sonso in Colombia, as well as countries like Thailand, Myanmar, South Africa, Sri Lanka, Cuba, Brazil, Aruba, and others. Its broad range suggests a high adaptability to various aquatic environments.
Other common names
WaterthymeFlorida-elodeaHydrillaIndian StargrassWater-thymeEsthwaite Waterweed
Distribution
Afrotropical · Australasian · Oriental (Indomalaya) · Palaearctic · Distrito Regional de Manejo Integrado (DRMI) Laguna de Sonso, municipio de Guadalajara de Buga, Valle del Cauca, Colombia · TW · MM · ZA · SC · LK · CU · BR · AW · Belgium · France · The Netherlands · Great Britain · MX · IQ · KH · NC · TH · FM · JM · VN · MU · SG · Austria · Germany · Ireland | Atlantic Ocean
Synonyms
Hydora lithuanicaHydrilla angustifoliaHydrilla dentataHydrilla lithuanicaHydrilla najadifoliaHydrilla ovalifoliaHydrilla roxburghiiHydrilla verticillata var. crispaHydrilla verticillata var. roxburghiiHydrospondylus submersusSerpicula verticillataUdora lithuanicaUdora pomeranicaUdora verticillataVallisneria verticillataElodea verticillataHydrilla dentata var. pomeranicaUdora lithuanica