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''Artemisia'' 〔''Sunset Western Garden Book,'' 1995:606–607〕 is a large, diverse genus of plants with between 200 and 400 species belonging to the daisy family Asteraceae. Common names for various species in the genus include mugwort, wormwood, and sagebrush. ''Artemisia'' comprises hardy herbaceous plants and shrubs, which are known for the powerful chemical constituents in their essential oils. ''Artemisia'' species grow in temperate climates of both hemispheres, usually in dry or semiarid habitats. Notable species include ''A. vulgaris'' (common mugwort), ''A. tridentata'' (big sagebrush), ''A. annua'' (sagewort), ''A. absinthium'' (wormwood), ''A. dracunculus'' (tarragon), and ''A. abrotanum'' (southernwood). The leaves of many species are covered with white hairs. Most species have strong aromas and bitter tastes from terpenoids and sesquiterpene lactones, which discourage herbivory, and may have had a selective advantage.〔 The small flowers are wind-pollinated.〔 ''Artemisia'' species are used as food plants by the larvae of a number of Lepidoptera species. Some botanists split the genus into several genera, but DNA analysis does not support the maintenance of the genera ''Crossostephium'', ''Filifolium'', ''Neopallasia'', ''Seriphidium'', and ''Sphaeromeria''; three other segregate genera ''Stilnolepis'', ''Elachanthemum'', and ''Kaschgaria'', are maintained by this evidence. Occasionally, some of the species are called sages, causing confusion with the ''Salvia'' sages in the family Lamiaceae. == Name == The name "artemisia" ultimately derives from the Greek goddess Artemis (Roman Diana), the namesake of Greek Queens Artemisia I and II. A more specific reference may be to Artemisia II of Caria, a botanist and medical researcher who died in 350 BC. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Artemisia (genus)」の詳細全文を読む スポンサード リンク
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