Artemisia (genus) as a remedy against hangovers and nightmares. "Artemisia absinthium" is used to make the highly potent spirits absinthe. Malört also contains wormwood. The aperitif vermouth (derived from the German word "Wermut", "wormwood") is a wine flavored with aromatic herbs, but originally with wormwood. "Artemisia arborescens" (tree wormwood, or "sheeba" in Arabic) is an aromatic herb indigenous to the Middle East used in tea, usually with mint. A few species are grown as ornamental plants, the fine-textured ones used for clipped bordering. All grow best in free-draining sandy soil, unfertilized, and in full sun. "Artemisia stelleriana" is known as Dusty Miller,
Additive map An additive map does not necessarily preserve any other structure of the object, for example the product operation of a ring. If and are additive maps, then the map (defined pointwise) is additive. A map that is additive each of two arguments separately is called a bi-additive map or a Z-bilinear map. Additive map In algebra, an additive map, Z-linear map or additive function is a function that preserves the addition operation: for every pair of elements and in the domain. For example, any linear map is additive. When the domain is the real numbers, this is Cauchy's functional equation.