Jeffrey pine vs true pine

Jeffrey pine and true pine both are nouns.

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

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

Jeffrey pine: 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
true pine: a coniferous tree

Other hypernyms of Jeffrey pine include pine, pine tree.

Jeffrey pine (noun)	true pine (noun)
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	a coniferous tree