mouse ear vs herb

mouse ear and herb both are nouns.

Word	Noun	Adjective	Verb	Adverb
mouse ear	Yes	No	No	No
herb	Yes	No	No	No

As nouns, herb is a hypernym of mouse ear; that is, herb is a word with a broader meaning than mouse ear:

mouse ear: any of various plants related to the common chickweed
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of mouse ear include herbaceous plant.

As nouns, herb is a hypernym of mouse ear; that is, herb is a word with a broader meaning than mouse ear:

mouse ear: small perennial herb having bright blue or white flowers
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

Other hypernyms of mouse ear include herbaceous plant.

mouse ear (noun)	herb (noun)
any of various plants related to the common chickweed	aromatic potherb used in cookery for its savory qualities
small perennial herb having bright blue or white flowers	a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests