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''Stokesia'' is a monotypic genus of flowering plants in the daisy family, Asteraceae, containing the single species ''Stokesia laevis''. Common names include Stokes' aster and stokesia.〔(''Stokesia laevis''. ) Germplasm Resources Information Network (GRIN).〕〔(''Stokesia laevis''. ) NatureServe. 2012.〕 The species is native to the southeastern United States. The flowers appear in the summer and are purple, blue, or white in nature.〔(''Stokesia'' L’Héritier. ) ''Flora of North America''.〕 The plant is cultivated as a garden flower. Several cultivars are available, including the cornflower blue 'Klaus Jelitto', 'Colorwheel', which is white, turning purple over time, and 'Blue Danube', which has a blue flower head with a white center.〔(''Stokesia laevis''. ) Missouri Botanical Garden.〕 More unusual cultivars include the pink-flowered 'Rosea' and yellow-flowered 'Mary Gregory'.〔(''Stokesia laevis''. ) Floridata.〕 Like a few other plants (such as some species of ''Vernonia''), it contains vernolic acid, a vegetable oil with commercial applications.〔Cahoon, E. B., et al. (2002). (Transgenic production of epoxy fatty acids by expression of a cytochrome p450 enzyme from ''Euphorbia lagascae'' seed. ) ''Plant Physiology'' 128(2), 615-24.〕 The genus is named after Jonathan Stokes (1755–1831), English botanist and physician.〔 ==References== 〔 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「Stokesia laevis」の詳細全文を読む スポンサード リンク
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