blue daisy vs flower

blue daisy and flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue daisy	Yes	No	No	No
flower	Yes	No	Yes	No

As nouns, flower is a hypernym of blue daisy; that is, flower is a word with a broader meaning than blue daisy:

blue daisy: hairy South African or Australian subshrub that has daisylike flowers with blue rays
flower: a plant cultivated for its blooms or blossoms

blue daisy (noun)	flower (noun)
hairy South African or Australian subshrub that has daisylike flowers with blue rays	a plant cultivated for its blooms or blossoms
	reproductive organ of angiosperm plants especially one having showy or colorful parts
	the period of greatest prosperity or productivity

blue daisy (verb)	flower (verb)
	produce or yield flowers