cedar tree vs coniferous tree

cedar tree and coniferous tree both are nouns.

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

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

Other hypernyms of cedar tree include conifer.

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

cedar tree: any of numerous trees of the family Cupressaceae that resemble cedars
coniferous tree: any gymnospermous tree or shrub bearing cones

Other hypernyms of cedar tree include conifer.

cedar tree (noun)	coniferous tree (noun)
any cedar of the genus Cedrus	any gymnospermous tree or shrub bearing cones
any of numerous trees of the family Cupressaceae that resemble cedars