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[loos-strahyf] /ˈlusˌstraɪf/
any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)
any of several plants belonging to the genus Lythrum, of the loosestrife family.
Origin of loosestrife
1540-50; loose (v.) + strife, mistranslation of Latin lȳsimachīa (< Greek lȳsimáchei(os) + -a feminine noun suffix; see lysi-, -machy), plant said to be named after a certain Lysímachos; see -ia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for loosestrife
  • Purple loosestrife is a stout, erect perennial herb with a strongly developed taproot and showy spikes of rose-purple flowers.
  • Raise special purple loosestrife eating beetles to control the invader.
  • How researchers are seeking ways to control the invasive purple loosestrife plant with insects.
  • loosestrife can invade both natural and disturbed wetlands, replacing native vegetation with nearly pure stands of loosestrife.
British Dictionary definitions for loosestrife


any of various primulaceous plants of the genus Lysimachia, esp the yellow-flowered L. vulgaris (yellow loosestrife) See also moneywort
purple loosestrife, a purple-flowered lythraceous marsh plant, Lythrum salicaria
any of several similar or related plants, such as the primulaceous plant Naumburgia thyrsiflora (tufted loosestrife)
Word Origin
C16: loose + strife, an erroneous translation of Latin lysimachia, as if from Greek lusimakhos ending strife, instead of from the name of the supposed discoverer, Lusimakhos
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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