water shamrock

Noun water shamrock has 1 sense

• water shamrock(n = noun.plant) bog myrtle, bogbean, buckbean, marsh trefoil, menyanthes trifoliata - 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; Array
is a member of genus menyanthes, menyanthes
is a kind of aquatic plant, hydrophyte, hydrophytic plant, water plant