creeping bentgrass vs Agrostis palustris

creeping bentgrass and Agrostis palustris both are nouns.

Word	Noun	Adjective	Verb	Adverb
creeping bentgrass	Yes	No	No	No
Agrostis palustris	Yes	No	No	No

As nouns, creeping bentgrass and Agrostis palustris are synonyms defined as:

creeping bentgrass and Agrostis palustris: common pasture or lawn grass spread by long runners

Other synonyms of creeping bentgrass include creeping bent.

creeping bentgrass (noun)	Agrostis palustris (noun)
common pasture or lawn grass spread by long runners	common pasture or lawn grass spread by long runners