Spirodela polyrhiza (L.) Schleid.


Big duckweed floating with Lemna minor


Each frond has more than one root




  • Scientific Name: Spirodela polyrhiza (L.) Schleid.
  • Common Name: Giant Duckweed, Big duckweed
  • Group: Monocot
  • Family: Lemnaceae (Duckweed family)
  • Wetland Indicator Category: OBL
  • Floating (free-floating)
  • standing and slow-moving ditches, ponds, lakes, rivers
  • Native