1) Genus spirodela 2) Liliopsid genus 3) Monocot genus 
Spirodela is a genus of aquatic plant. It is one of several genera containing plants commonly called duckweed. Spirodela species are members of the Araceae under the APG II system. They were formerly members of the Lemnaceae. Spirodela species are free-floating thalli, 2-5 plants may remain connected to each other. Plants are green, but may have a...
[n] - minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots
genus Spirodela noun minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots