- Spirodela, genus Spirodela - minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots
--1 is a kind of monocot genus, liliopsid genus
--1 is a member of Lemnaceae, family Lemnaceae, duckweed family
--1 has members: great duckweed, water flaxseed, Spirodela polyrrhiza