Princeton's WordNet
water shamrock, buckbean, bogbean, bog myrtle, marsh trefoil, Menyanthes trifoliatanoun
perennial plant of Europe and America having racemes of white or purplish flowers and intensely bitter trifoliate leaves; often rooting at water margin and spreading across the surface
Synonyms:
water shamrock, bog myrtle, buckbean, marsh trefoil, bogbean
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