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Leavenworthia : ウィキペディア英語版 | Leavenworthia
''Leavenworthia'' is a genus of flowering plants in the mustard family, Brassicaceae. It includes about eight species native to the southern and southeastern United States.〔(''Leavenworthia''. ) Flora of North America.〕 They are known generally as gladecresses.〔(''Leavenworthia''. ) USDA PLANTS.〕〔(''Leavenworthia''. ) Integrated Taxonomic Information System (ITIS).〕 ==Description== These are small annual herbs under 10 centimeters tall.〔Beck, J. B., et al. (2006). (''Leavenworthia'' (Brassicaceae) revisited: testing classic systematic and mating system hypotheses. ) ''Systematic Botany'' 31(1), 151-59.〕 They produce a basal rosette of leaves and often lack a true stem, instead sending up a scape, a flowering stalk topped with an inflorescence. The inflorescence is usually made up of just one flower, but a large plant may produce several flowers in a raceme. The petals are white, yellow, orange, or lavender. They are often notched and clawed, narrow at the base and wider at the tip. There are six stamens, two short and four long. The fruits are siliques or silicles of various shapes. The seeds are flattened and have wide margins or wings.〔
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「Leavenworthia」の詳細全文を読む
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