lodgepole pine vs pine tree

lodgepole pine and pine tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
lodgepole pine	Yes	No	No	No
pine tree	Yes	No	No	No

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

lodgepole pine: shrubby two-needled pine of coastal northwestern United States; red to yellow-brown bark fissured into small squares
pine tree: a coniferous tree

Other hypernyms of lodgepole pine include pine, true pine.

lodgepole pine (noun)	pine tree (noun)
shrubby two-needled pine of coastal northwestern United States; red to yellow-brown bark fissured into small squares	a coniferous tree