goldfields vs wildflower

goldfields and wildflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
goldfields	Yes	No	No	No
wildflower	Yes	No	No	No

As nouns, wildflower is a hypernym of goldfields; that is, wildflower is a word with a broader meaning than goldfields:

goldfields: small slender woolly annual with very narrow opposite leaves and branches bearing solitary golden-yellow flower heads; southwestern Oregon to Baja California and Arizona; often cultivated
wildflower: wild or uncultivated flowering plant

Other hypernyms of goldfields include wild flower.

goldfields (noun)	wildflower (noun)
small slender woolly annual with very narrow opposite leaves and branches bearing solitary golden-yellow flower heads; southwestern Oregon to Baja California and Arizona; often cultivated	wild or uncultivated flowering plant