bluebell vs wild hyacinth

bluebell and wild hyacinth both are nouns.

Word	Noun	Adjective	Verb	Adverb
bluebell	Yes	No	No	No
wild hyacinth	Yes	No	No	No

As nouns, bluebell and wild hyacinth are synonyms defined as:

Other synonyms of bluebell include harebell, Hyacinthoides nonscripta, Scilla nonscripta, wood hyacinth.

bluebell (noun)	wild hyacinth (noun)
one of the most handsome prairie wildflowers having large erect bell-shaped bluish flowers; of moist places in prairies and fields from eastern Colorado and Nebraska south to New Mexico and Texas	sometimes placed in genus Scilla
perennial of Northern Hemisphere with slender stems and bell-shaped blue flowers	eastern camas; eastern and central North America
sometimes placed in genus Scilla