Poa nemoralis vs Agrostis alba

Poa nemoralis and Agrostis alba both are nouns.

Word	Noun	Adjective	Verb	Adverb
Poa nemoralis	Yes	No	No	No
Agrostis alba	Yes	No	No	No

As nouns, Poa nemoralis and Agrostis alba are synonyms defined as:

Poa nemoralis and Agrostis alba: slender European grass of shady places; grown also in northeastern America and temperate Asia

Other synonyms of Poa nemoralis include wood meadowgrass.

Poa nemoralis (noun)	Agrostis alba (noun)
slender European grass of shady places; grown also in northeastern America and temperate Asia	slender European grass of shady places; grown also in northeastern America and temperate Asia