crownbeard vs crown-beard

crownbeard and crown-beard both are nouns.

Word	Noun	Adjective	Verb	Adverb
crownbeard	Yes	No	No	No
crown-beard	Yes	No	No	No

As nouns, crownbeard and crown-beard are synonyms defined as:

crownbeard and crown-beard: any plant of the genus Verbesina having clustered white or yellow flower heads

Other synonyms of crownbeard include crown beard.

crownbeard (noun)	crown-beard (noun)
any plant of the genus Verbesina having clustered white or yellow flower heads	any plant of the genus Verbesina having clustered white or yellow flower heads