white madder vs Galium mollugo

white madder and Galium mollugo both are nouns.

Word	Noun	Adjective	Verb	Adverb
white madder	Yes	No	No	No
Galium mollugo	Yes	No	No	No

As nouns, white madder and Galium mollugo are synonyms defined as:

white madder and Galium mollugo: Eurasian herb with ample panicles of small white flowers; naturalized in North America

Other synonyms of white madder include false baby's breath, infant's-breath, white bedstraw, wild madder.

white madder (noun)	Galium mollugo (noun)
Eurasian herb with ample panicles of small white flowers; naturalized in North America	Eurasian herb with ample panicles of small white flowers; naturalized in North America