Aquatic Invasive Species
Hydrocharis morsus-ranae

  • Frogbit is a free-floating aquatic herb that grows in marshes, ditches and swamps. Its miniature, heart-shaped leaves resemble those of water lilies.
  • Common to the temperate regions of Eurasia, Frogbit is considered an invasive plant in Canada and was identified in wetlands near Lake St. Clair (U.S. side) in 2000.
  • Frogbit forms dense mats on the surface of the water that can impede water traffic and reduce growth of native submersed aquatic plants.