genus Ratibida vs long-head coneflower

genus Ratibida and long-head coneflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Ratibida	Yes	No	No	No
long-head coneflower	Yes	No	No	No

genus Ratibida (noun)	long-head coneflower (noun)
genus of perennial wildflowers of North American plains and prairies; often cultivated for their showy flower heads	plant similar to the Mexican hat coneflower; from British Columbia to New Mexico