Menyanthes trifoliata – Bog Bean

Menyanthes trifoliata (commonly known as Bog Bean, Buckbean, or Marsh Trefoil) is a fascinating, highly distinctive shallow-water perennial native to cold fens, peat bogs, and marshy wetlands across the Northern Hemisphere. As the sole member of its genus, this unique monotypic plant is a favorite among pond hobbyists because it acts as a creeping groundcover for the water's surface, weaving dense mats that stabilize muddy banks and naturally filter pond water.