umbrellawort vs flower

umbrellawort and flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbrellawort	Yes	No	No	No
flower	Yes	No	Yes	No

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

umbrellawort (noun)	flower (noun)
a plant of the genus Mirabilis	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

umbrellawort (verb)	flower (verb)
	produce or yield flowers