Hottonia inflata, commonly known as featherfoil or water violet, is a delicate aquatic plant that is native to Northern Hemisphere regions. Its alternate names include Hottonia palustris and water lobelia, reflecting its resemblance to lobelia plants. Other synonyms include the European water violet and the feather-leaved water plantain. Its scientific Latin name, Hottonia inflata, comes from the Greek botanist, George Hotton, and refers to the plant's inflated stem. Featherfoil is a popular ornamental plant for aquariums due to its attractive feathery leaves and pretty white flowers. It is an essential part of freshwater ecosystems and is often used in wetland and pond restoration projects.