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''Juncus acutus'' or spiny rush, sharp rush or sharp-pointed rush is of the monocot family Juncaceae and genus ''Juncus''. It grows in salt marshes and on dunes and is reliable for reducing erosion rates yet, in some countries like Australia it is considered to be an invasive weed and the spines harmful to young children. ==Synonyms== *''Juncus acutus'' ssp. ''leopoldii'' (Parl.) Snog. -- Leopold's Rush *''Juncus acutus'' L. var. ''sphaerocarpus'' Engelm. *''Juncus acutus'' L. subsp. ''acutus'' *''Juncus spinosus'' Forssk. *''Juncus acutus'' ssp. ''leopoldii'' also known as ''Leopold's rush'' is a native of Arizona, California, Georgia and Nevada.〔〔 *''Juncus acutus'' L. var. ''conglobatus'' Trautv. *''Juncus acutus'' L. var. ''decompositus'' Guss. *''Juncus acutus'' L. var. ''longibracteatus'' Buchenau 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「Juncus acutus」の詳細全文を読む スポンサード リンク
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