lythrum : Idioms & Phrases
genus lythrum
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noun loosestrife
Lythrum.
WordNet
lythrum hyssopifolia
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noun annual with small solitary pink flowers; originally of Europe but widely naturalized in moist areas
grass poly; hyssop loosestrife.
WordNet
lythrum salicaria
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noun marsh herb with a long spike of purple flowers; originally of Europe but now rampant in eastern United States
purple loosestrife; spiked loosestrife.