Pinus pungens vs hickory pine

Pinus pungens and hickory pine both are nouns.

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

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

Pinus pungens and hickory pine: 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 Pinus pungens include prickly pine, table-mountain pine.

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