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 synthesis organs, which also have pipes producing non-sinusoidal waveforms, can be considered as a variant form of additive synthesizers. Summation of principal components and Walsh functions have also been classified as additive synthesis. Modern-day implementations of additive synthesis are mainly digital. (See section "Discrete-time equations" for the underlying discrete-time theory) Additive synthesis can be implemented using a bank of sinusoidal oscillators, one for each partial. In the case of harmonic, quasi-periodic musical tones, wavetable synthesis can be as general as time-varying additive synthesis, but requires less computation during synthesis. As a result, an efficient implementation of time-varying additive synthesis of harmonic