LEMNACEAE - DUCKWEED FAMILY
Small free-floating or submerged freshwater aquatics, plant
body leafless, body undifferentiated
Leaves absent
Flowers unisexual, rarely found
6 genera, 29 species, in freshwater, some almost microscopic
Wolffia arrhiza is smallest known flowering plant
Economic uses - food for waterfowl and fish, aquarium plants
Diagnostic characteristics - floating aquatics, small, highly reduced
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