love grass vs bay grass

love grass and bay grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
love grass	Yes	No	No	No
bay grass	Yes	No	No	No

As nouns, love grass and bay grass are synonyms defined as:

love grass and bay grass: any of various grasses of the genus Eragrostis; specially useful for forage and for the prevention of erosion

love grass (noun)	bay grass (noun)
any of various grasses of the genus Eragrostis; specially useful for forage and for the prevention of erosion	any of various grasses of the genus Eragrostis; specially useful for forage and for the prevention of erosion