elegant cat's ears vs genus Calochortus

elegant cat's ears and genus Calochortus both are nouns.

Word	Noun	Adjective	Verb	Adverb
elegant cat's ears	Yes	No	No	No
genus Calochortus	Yes	No	No	No

elegant cat's ears (noun)	genus Calochortus (noun)
small plant with slender bent stems bearing branched clusters of a few white star-shaped flowers with petals shaped like cat's ears; southeastern Washington and northeastern Oregon to Montana	large genus of western North American leafy-stemmed bulbous herbs