black pine vs coniferous tree

black pine and coniferous tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
black pine	Yes	No	No	No
coniferous tree	Yes	No	No	No

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

black pine: New Zealand conifer used for lumber; the dark wood is used for interior carpentry
coniferous tree: any gymnospermous tree or shrub bearing cones

Other hypernyms of black pine include conifer.

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

Other hypernyms of black pine include conifer.

black pine (noun)	coniferous tree (noun)
New Zealand conifer used for lumber; the dark wood is used for interior carpentry	any gymnospermous tree or shrub bearing cones
conifer of Australia and New Zealand
tall symmetrical pine of western North America having long blue-green needles in bunches of 3 and elongated cones on spreading somewhat pendulous branches; sometimes classified as a variety of ponderosa pine
large Japanese ornamental having long needles in bunches of 2; widely planted in United States because of its resistance to salt and smog
large two-needled timber pine of southeastern Europe