verdure vs richness

verdure and richness both are nouns.

Word	Noun	Adjective	Verb	Adverb
verdure	Yes	No	No	No
richness	Yes	No	No	No

As nouns, richness is a hypernym of verdure; that is, richness is a word with a broader meaning than verdure:

Other hypernyms of verdure include cornucopia, profuseness, profusion.

verdure (noun)	richness (noun)
the lush appearance of flourishing vegetation	a strong deep vividness of hue
green foliage	the property of a sensation that is rich and pleasing
	the property of producing abundantly and sustaining vigorous and luxuriant growth
	the property of being extremely abundant
	splendid or imposing in size or appearance
	the quality of having high intrinsic value
	abundant wealth