wingstem vs crownbeard

wingstem and crownbeard both are nouns.

Word	Noun	Adjective	Verb	Adverb
wingstem	Yes	No	No	No
crownbeard	Yes	No	No	No

As nouns, crownbeard is a hypernym of wingstem; that is, crownbeard is a word with a broader meaning than wingstem:

wingstem: perennial herb with showy yellow flowers; the eastern United States
crownbeard: any plant of the genus Verbesina having clustered white or yellow flower heads

Other hypernyms of wingstem include crown-beard, crown beard.

wingstem (noun)	crownbeard (noun)
perennial herb with showy yellow flowers; the eastern United States	any plant of the genus Verbesina having clustered white or yellow flower heads