Family Hydrocharitaceae: The Frog Bits

Hydrocharitaceae is a plant family that includes a number of aquatic plant species, broadly called the Tape-grasses, and includes the well known Canadian Waterweed, Frog’s Bit, Elodea, Hydrilla, and Egeria.

The family includes both fresh and marine aquatics. They are found throughout the world in a wide variety of habitats, but most are primarily tropical.


The following genera are usually included in the Hydrocharitaceae.

  • Apalanthe
  • Appertiella
  • Blyxa
  • Egeria
  • Elodea
  • Enhalus
  • Halophila
  • Hydrilla
  • Hydrocharis
  • Lagarosiphon
  • Limnobium
  • Maidenia
  • Najas
  • Nechamandra
  • Ottelia
  • Stratiotes
  • Thalassia
  • Vallisneria

Species listed under Hydrocharitaceae