prickly pine vs true pine

prickly pine and true pine both are nouns.

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

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

prickly pine: a small two-needled upland pine of the eastern United States (Appalachians) having dark brown flaking bark and thorn-tipped cone scales
true pine: a coniferous tree

Other hypernyms of prickly pine include pine, pine tree.

prickly pine (noun)	true pine (noun)
a small two-needled upland pine of the eastern United States (Appalachians) having dark brown flaking bark and thorn-tipped cone scales	a coniferous tree