Italian cypress vs cypress

Italian cypress and cypress both are nouns.

Word	Noun	Adjective	Verb	Adverb
Italian cypress	Yes	No	No	No
cypress	Yes	No	No	No

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

Italian cypress: tall Eurasian cypress with thin grey bark and ascending branches
cypress: any of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded cones

Other hypernyms of Italian cypress include cypress tree.

Italian cypress (noun)	cypress (noun)
tall Eurasian cypress with thin grey bark and ascending branches	any of numerous evergreen conifers of the genus Cupressus of north temperate regions having dark scalelike leaves and rounded cones
	wood of any of various cypress trees especially of the genus Cupressus