hoary golden bush vs Hazardia cana

hoary golden bush and Hazardia cana both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoary golden bush	Yes	No	No	No
Hazardia cana	Yes	No	No	No

As nouns, hoary golden bush and Hazardia cana are synonyms defined as:

hoary golden bush and Hazardia cana: western American shrubs having white felted foliage and yellow flowers that become red-purple

hoary golden bush (noun)	Hazardia cana (noun)
western American shrubs having white felted foliage and yellow flowers that become red-purple	western American shrubs having white felted foliage and yellow flowers that become red-purple