lady's laces vs ribbon grass

lady's laces and ribbon grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
lady's laces	Yes	No	No	No
ribbon grass	Yes	No	No	No

As nouns, lady's laces and ribbon grass are synonyms defined as:

lady's laces and ribbon grass: perennial grass of marshy meadows and ditches having broad leaves; Europe and North America

Other synonyms of lady's laces include gardener's garters, Phalaris arundinacea, reed canary grass.

lady's laces (noun)	ribbon grass (noun)
perennial grass of marshy meadows and ditches having broad leaves; Europe and North America	perennial grass of marshy meadows and ditches having broad leaves; Europe and North America