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 category exactly one 1-by-0 matrix with entries in ) – this is just what it means to say that 0 is a zero object. Furthermore, the zero morphism from to is the composition of these morphisms, as can be calculated by multiplying the degenerate matrices. A functor between preadditive categories is "additive" if it is an abelian group homomorphism on each hom-set in C. If the categories are additive, then a functor is additive if and only if it preserves all biproduct diagrams. That is, if is a biproduct of in C with projection morphisms and injection morphisms , then should