Northern Prairie Wildlife Research Center
DUCKWEED FAMILY (Lemnaceae)
IND. STATUS: OBL
FIELD CHARACTERISTICS: Tiny plants with a globular frond 0.3-1 mm. long and floating just at the surface of the water. The scale shown in the above photograph is in mm.
ECOLOGICAL NOTES: Found in quiet waters of lakes and marshes, frequently associated with other members of the duckweed family.
Watermeal (Wolffia spp.) are the world's smallest flowering plants.
SOURCE: Fassett (1957); Gleason and Cronquist (1991); and Martin et al. (1951).