cuckooflower vs Cardamine pratensis

cuckooflower and Cardamine pratensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
cuckooflower	Yes	No	No	No
Cardamine pratensis	Yes	No	No	No

As nouns, cuckooflower and Cardamine pratensis are synonyms defined as:

cuckooflower and Cardamine pratensis: a bitter cress of Europe and America

Other synonyms of cuckooflower include cuckoo flower, lady's smock, meadow cress.

cuckooflower (noun)	Cardamine pratensis (noun)
a bitter cress of Europe and America	a bitter cress of Europe and America