spatterdock vs cow lily

spatterdock and cow lily both are nouns.

Word	Noun	Adjective	Verb	Adverb
spatterdock	Yes	No	No	No
cow lily	Yes	No	No	No

As nouns, spatterdock and cow lily are synonyms defined as:

spatterdock and cow lily: common water lily of eastern and central North America, having broad leaves and globe-shaped yellow flowers; in sluggish fresh or slightly brackish water

Other synonyms of spatterdock include Nuphar advena, yellow pond lily.

spatterdock (noun)	cow lily (noun)
common water lily of eastern and central North America, having broad leaves and globe-shaped yellow flowers; in sluggish fresh or slightly brackish water	common water lily of eastern and central North America, having broad leaves and globe-shaped yellow flowers; in sluggish fresh or slightly brackish water