Arizona cypress vs cypress tree

Arizona cypress and cypress tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Arizona cypress	Yes	No	No	No
cypress tree	Yes	No	No	No

As nouns, cypress tree is a hypernym of Arizona cypress; that is, cypress tree is a word with a broader meaning than Arizona cypress:

Arizona cypress: Arizona timber tree with bluish silvery foliage
cypress tree: any of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded cones

Other hypernyms of Arizona cypress include cypress.

Arizona cypress (noun)	cypress tree (noun)
Arizona timber tree with bluish silvery foliage	any of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded cones