mouse ear vs Myosotis scorpiodes

mouse ear and Myosotis scorpiodes both are nouns.

Word	Noun	Adjective	Verb	Adverb
mouse ear	Yes	No	No	No
Myosotis scorpiodes	Yes	No	No	No

As nouns, mouse ear and Myosotis scorpiodes are synonyms defined as:

mouse ear and Myosotis scorpiodes: small perennial herb having bright blue or white flowers

Other synonyms of mouse ear include forget-me-not.

mouse ear (noun)	Myosotis scorpiodes (noun)
any of various plants related to the common chickweed	small perennial herb having bright blue or white flowers
small perennial herb having bright blue or white flowers