prickly pine vs Pinus pungens

prickly pine and Pinus pungens both are nouns.

Word	Noun	Adjective	Verb	Adverb
prickly pine	Yes	No	No	No
Pinus pungens	Yes	No	No	No

As nouns, prickly pine and Pinus pungens are synonyms defined as:

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

Other synonyms of prickly pine include hickory pine, table-mountain pine.

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