Common Duckweed, Lesser Duckweed, Water Lentil: Lemna minor -
Turion Duckweed: Lemna turionifera
American Skunk Cabbage, Skunk-cabbage, Yellow Skunk Cabbage: Lysichiton americanus (Synonym: Lysichitum americanum)
Duckmeal, Common Duckmeat, Greater Duckweed: Spirodela polyrhiza (Synonyms: Lemna polyrrhiza, Spirodela polyrrhiza, Spirodela polyrrhiza var. masonii)