Absinthe (also absinth) is a distilled, highly alcoholic, anise-flavored spirit derived from herbs including the flowers and leaves of the medicinal plant Artemisia absinthium, also called grand wormwood. Although it is sometimes incorrectly called a liqueur, absinthe is not bottled with added sugar and is therefore classified as a liquor or spirit.Absinthe is often referred to as la Fée Verte ('The Green Fairy') because of its coloring — typically a naturally created pale or emerald green, but sometimes clear or artificially colored. Due to its high proof and concentration of oils, absintheurs (absinthe drinkers) typically add three to five parts ice-cold water to a dose of absinthe, which causes the drink to turn cloudy, called 'louching'; often the water is used to dissolve added sugar to decrease bitterness.This preparation is considered an important part of the experience of drinking absinthe, so much so that it has become ritualized, complete with special slotted absinthe spoons and other accoutrements.