scorpion weed vs flower

scorpion weed and flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
scorpion weed	Yes	No	No	No
flower	Yes	No	Yes	No

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

scorpion weed (noun)	flower (noun)
any plant of the genus Phacelia	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

scorpion weed (verb)	flower (verb)
	produce or yield flowers