Phalaris canariensis vs canary grass

Phalaris canariensis and canary grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
Phalaris canariensis	Yes	No	No	No
canary grass	Yes	No	No	No

As nouns, Phalaris canariensis and canary grass are synonyms defined as:

Phalaris canariensis and canary grass: Canary Islands grass; seeds used as feed for caged birds

Other synonyms of Phalaris canariensis include birdseed grass.

Phalaris canariensis (noun)	canary grass (noun)
Canary Islands grass; seeds used as feed for caged birds	Canary Islands grass; seeds used as feed for caged birds