flannelbush vs flannel bush

flannelbush and flannel bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
flannelbush	Yes	No	No	No
flannel bush	Yes	No	No	No

As nouns, flannelbush and flannel bush are synonyms defined as:

flannelbush and flannel bush: any of several handsome evergreen shrubs of California and northern Mexico having downy lobed leaves and showy yellow flowers

Other synonyms of flannelbush include California beauty.

flannelbush (noun)	flannel bush (noun)
any of several handsome evergreen shrubs of California and northern Mexico having downy lobed leaves and showy yellow flowers	any of several handsome evergreen shrubs of California and northern Mexico having downy lobed leaves and showy yellow flowers