waterleaf
hydrophyllum
tapegrass
Hydrophyllum
genus Hydrophyllum
genus Aldrovanda
Aldrovanda
water poppy
shawnee
sedge
portulaca
hydrozone
marsilea
Haemodoraceae
genus Marsilea
pepper
pepperwort
clover fern
Marsilea
family Haemodoraceae
bloodwort family
Eichhornia
genus Eichhornia
mare's tail
lakeweed
ribbon-leaved water plantain
nenuphar
genus Clethra
Clethra
mallow
bellwort
fool's watercress
family Najadaceae
family Naiadaceae
Naiadaceae
genus Urginea
naiad family
Urginea
Najadaceae
hydrophytology
genus Chlamydomonas
caryophyllaceous plant
caperwort
subfamily Philadelphaceae
Philadelphaceae
Chlamydomonas
Amazon lily
Nymphaea
pad
Salvinia