white madder vs wild madder

white madder and wild madder both are nouns.

Word	Noun	Adjective	Verb	Adverb
white madder	Yes	No	No	No
wild madder	Yes	No	No	No

As nouns, white madder and wild madder are synonyms defined as:

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

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

white madder (noun)	wild madder (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