Menyanthes trifoliata, n.
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
<noun.plant>
Menyanthes trifoliata bog myrtle bogbean buckbean marsh trefoil water shamrock
<noun.plant>
Menyanthes trifoliata bog myrtle bogbean buckbean marsh trefoil water shamrock
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