genus Spirodela

Từ điển WordNet v3.1 - WordNet Dictionary

noun

minute aquatic herbs floating on the water surface consisting of a shiny leaflike frond and 2-21 roots
• Syn:
Spirodela
• Hypernyms:
monocot genus, liliopsid genus
• Member Holonyms:
Lemnaceae, family Lemnaceae, duckweed family
• Member Meronyms:
great duckweed, water flaxseed, Spirodela polyrrhiza