Pernod is basically absinthe without the wormwood. It is named after Henri-Louis Pernod, an individual who ran an absinthe factory in France in the early 1800s. As a substitute for wormwood, the modern drink Pernod uses increased amounts of aniseed. Ricard is the name of another modern wormwood-less absinthe. Also, vermouth, chartreuse, and benedictine all contain small amounts of thujone.
Wormwood is popular as a flavoring for vodka in Sweden.
One such company is The Essential Oil Co., PO Box 206, Lake Oswego, OR, 97034. The company also sells other oils of interest to readers of this newsgroup. It is also characteristic of most species of Artemisia, a genus within the Compositae, or daisy, family. These ingredients were mascerated together with wormwood plants. After leaving the mixture to sit, water was added and the mixture was distilled.