marsh marigold vs water dragon

marsh marigold and water dragon both are nouns.

Word	Noun	Adjective	Verb	Adverb
marsh marigold	Yes	No	No	No
water dragon	Yes	No	No	No

As nouns, marsh marigold and water dragon are synonyms defined as:

marsh marigold and water dragon: swamp plant of Europe and North America having bright yellow flowers resembling buttercups

Other synonyms of marsh marigold include Caltha palustris, cowslip, kingcup, May blob, meadow bright.

marsh marigold (noun)	water dragon (noun)
swamp plant of Europe and North America having bright yellow flowers resembling buttercups	swamp plant of Europe and North America having bright yellow flowers resembling buttercups
	North American herbaceous perennial of wet places having slender curled racemes of small white flowers