common duckweed

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common duckweed (countable and uncountable, plural common duckweeds)

1. Any of species Limna minor of freshwater aquatic plants used for bioremediation and advanced for other environmental uses, found worldwide, except in arctic and subarctic environments.

• (aquatic plant): lesser duckweed

•   common duckweed on Wikipedia.Wikipedia
•   Limna minor on Wikispecies.Wikispecies
•   Limna minor on Wikimedia Commons.Wikimedia Commons