false oat vs evergreen grass

false oat and evergreen grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
false oat	Yes	No	No	No
evergreen grass	Yes	No	No	No

As nouns, false oat and evergreen grass are synonyms defined as:

false oat and evergreen grass: coarse perennial Eurasian grass resembling oat; found on roadside verges and rough grassland and in hay meadows; introduced in North America for forage

Other synonyms of false oat include Arrhenatherum elatius, French rye, tall meadow grass, tall oat grass.

false oat (noun)	evergreen grass (noun)
coarse perennial Eurasian grass resembling oat; found on roadside verges and rough grassland and in hay meadows; introduced in North America for forage	coarse perennial Eurasian grass resembling oat; found on roadside verges and rough grassland and in hay meadows; introduced in North America for forage