Cedrus libani vs cedar

Cedrus libani and cedar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cedrus libani	Yes	No	No	No
cedar	Yes	No	No	No

As nouns, cedar is a hypernym of Cedrus libani; that is, cedar is a word with a broader meaning than Cedrus libani:

Cedrus libani: cedar of Lebanon and northwestern Syria that attains great age and height
cedar: any cedar of the genus Cedrus

Other hypernyms of Cedrus libani include cedar tree, true cedar.

Cedrus libani (noun)	cedar (noun)
cedar of Lebanon and northwestern Syria that attains great age and height	any cedar of the genus Cedrus
	any of numerous trees of the family Cupressaceae that resemble cedars
	durable aromatic wood of any of numerous cedar trees; especially wood of the red cedar often used for cedar chests