Family
Hydrocharitaceae (Tape-grass family)
Limnobium laevigatum. Photo: (c) marcosserenal, some rights reserved (CC BY-NC)
Hydrocharitaceae is a flowering plant family including 16 known genera with a total of ca 135 known species (Christenhusz & Byng 2016 ), that including a number of species of aquatic plant, for instance the tape-grasses, the well known Canadian waterweed and frogbit Hydrocharis morsus-ranae.