Monterey pine vs true pine

Monterey pine and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Monterey pine	Yes	No	No	No
true pine	Yes	No	No	No

As nouns, true pine is a hypernym of Monterey pine; that is, true pine is a word with a broader meaning than Monterey pine:

Monterey pine: tall California pine with long needles in bunches of 3, a dense crown, and dark brown deeply fissured bark
true pine: a coniferous tree

Other hypernyms of Monterey pine include pine, pine tree.

Monterey pine (noun)	true pine (noun)
tall California pine with long needles in bunches of 3, a dense crown, and dark brown deeply fissured bark	a coniferous tree