1. (noun) 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

• bog myrtle
• bogbean
• buckbean
• marsh trefoil
• water shamrock

1. (noun) 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

• aquatic plant
• hydrophyte
• hydrophytic plant
• water plant

1. (noun) 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

• genus menyanthes
• menyanthes