lady's laces vs Phalaris arundinacea

lady's laces and Phalaris arundinacea both are nouns.

Word	Noun	Adjective	Verb	Adverb
lady's laces	Yes	No	No	No
Phalaris arundinacea	Yes	No	No	No

As nouns, lady's laces and Phalaris arundinacea are synonyms defined as:

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

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

lady's laces (noun)	Phalaris arundinacea (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