mouse eared chickweed vs mouse-ear chickweed

mouse eared chickweed and mouse-ear chickweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
mouse eared chickweed	Yes	No	No	No
mouse-ear chickweed	Yes	No	No	No

As nouns, mouse eared chickweed and mouse-ear chickweed are synonyms defined as:

mouse eared chickweed and mouse-ear chickweed: any of various plants related to the common chickweed

Other synonyms of mouse eared chickweed include chickweed, clammy chickweed, mouse ear.

mouse eared chickweed (noun)	mouse-ear chickweed (noun)
any of various plants related to the common chickweed	any of various plants related to the common chickweed