cedar tree vs Cupressaceae

cedar tree and Cupressaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
cedar tree	Yes	No	No	No
Cupressaceae	Yes	No	No	No

cedar tree (noun)	Cupressaceae (noun)
any cedar of the genus Cedrus	cypresses and junipers and many cedars
any of numerous trees of the family Cupressaceae that resemble cedars