water dragon vs marsh marigold

water dragon and marsh marigold both are nouns.

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

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

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

Other synonyms of water dragon include Caltha palustris, cowslip, kingcup, May blob, meadow bright.

water dragon (noun)	marsh marigold (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