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''Perovskia atriplicifolia'' (), commonly called Russian sage, is a flowering herbaceous perennial plant and subshrub. Although not a member of ''Salvia'', the genus of other plants commonly called sage, it is closely related to them. It has an upright habit, typically reaching tall, with square stems and grey-green leaves that yield a distinctive odor when crushed. It is best known for its flowers. Its flowering season extends from mid-summer to late October, with blue to violet blossoms arranged into showy, branched panicles. Native to the steppes and hills of southwestern and central Asia, it was introduced to cultivation by Vasily Perovsky in the 19th century. Successful over a wide range of climate and soil conditions, it has since become popular and widely planted. Several cultivars have been developed, differing primarily in leaf shape and overall height; 'Blue Spire' is the most common. This variation has been widely used in gardens and landscaping. ''P. atriplicifolia'' was the Perennial Plant Association's 1995 Plant of the Year, and the 'Blue Spire' cultivar received the Award of Garden Merit from the Royal Horticultural Society. The species has a long history of use in traditional medicine in its native range, where it is employed as a treatment for a variety of ailments. This has led to the investigation of its phytochemistry. Its flowers can be eaten in salads or crushed for dyemaking, and the plant has been considered for potential use in the phytoremediation of contaminated soil. ==Taxonomy and phylogeny== ''Perovskia atriplicifolia'' was described by George Bentham in 1848, based on a specimen collected by William Griffith in Afghanistan, now preserved at the Kew Gardens herbarium as the species's holotype. The specific epithet ''atriplicifolia'' means "with leaves like ''Atriplex''", referring to its similarity to saltbush. Commonly known as Russian sage, ''P. atriplicifolia'' is neither native to Russia nor a member of ''Salvia'', the genus generally referred to as sage. A Chinese population was described as a separate species in 1987 and given the name ''Perovskia pamirica'', but has since been considered synonymous with ''P. atriplicifolia''. 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「Perovskia atriplicifolia」の詳細全文を読む スポンサード リンク
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