prickle-weed vs prairie mimosa

prickle-weed and prairie mimosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
prickle-weed	Yes	No	No	No
prairie mimosa	Yes	No	No	No

As nouns, prickle-weed and prairie mimosa are synonyms defined as:

prickle-weed and prairie mimosa: perennial herb of North American prairies having dense heads of small white flowers

Other synonyms of prickle-weed include Desmanthus ilinoensis.

prickle-weed (noun)	prairie mimosa (noun)
perennial herb of North American prairies having dense heads of small white flowers	perennial herb of North American prairies having dense heads of small white flowers