Ranunculus acris vs tall field buttercup

Ranunculus acris and tall field buttercup both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ranunculus acris	Yes	No	No	No
tall field buttercup	Yes	No	No	No

As nouns, Ranunculus acris and tall field buttercup are synonyms defined as:

Ranunculus acris and tall field buttercup: perennial European buttercup with yellow spring flowers widely naturalized especially in eastern North America

Other synonyms of Ranunculus acris include meadow buttercup, tall buttercup, tall crowfoot.

Ranunculus acris (noun)	tall field buttercup (noun)
perennial European buttercup with yellow spring flowers widely naturalized especially in eastern North America	perennial European buttercup with yellow spring flowers widely naturalized especially in eastern North America