Lemna minor L.
Family: Araceae
common duckweed, lesser duckweed, small duckweed
Lemna minor image
Dennis W. Woodland  
Etymology: Lemna: from Greek limnos, "lake or swamp," referring to its aquatic habitat
Plants: floating perennial aquatic, colonies; stems none; 1 root below each leaf (frond)
Leaves: round to oval with 3 faint nerves
Fruits: winter buds from fronds that sink
Habitat: wet; bays, ponds
Conservation Status: Native