1. 
   Star Duckweed
   (Lemna) These aquatic plants are found all over the world. L. minor, known as Duckweed, is a tiny plant that floats on top of the water. It produces light green leaves, which have only a single root. Duckweed spreads rapidly and if not controlled will become a nuisance. This plant is eaten by fish a...
   Found op http://www.botany.com/lemna.html
   
   
2. 
   star-duckweed
   [n] - cosmopolitan in temperate regions except North America
   Found op http://www.webdictionary.co.uk/definition.php?query=star-duckweed
   
   
3. 
   star-duckweed
   Lemna trisulca noun cosmopolitan in temperate regions except North America
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=star-duckweed
   
   

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