whispering bells vs yellow bells

whispering bells and yellow bells both are nouns.

Word	Noun	Adjective	Verb	Adverb
whispering bells	Yes	No	No	No
yellow bells	Yes	No	No	No

As nouns, whispering bells and yellow bells are synonyms defined as:

whispering bells and yellow bells: viscid herb of arid or desert habitats of southwestern United States having pendulous yellow flowers

Other synonyms of whispering bells include California yellow bells, Emmanthe penduliflora.

whispering bells (noun)	yellow bells (noun)
viscid herb of arid or desert habitats of southwestern United States having pendulous yellow flowers	viscid herb of arid or desert habitats of southwestern United States having pendulous yellow flowers