red pine vs true pine

red pine and true pine both are nouns.

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

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

red pine: pine of eastern North America having long needles in bunches of two and reddish bark
true pine: a coniferous tree

Other hypernyms of red pine include pine, pine tree.

red pine (noun)	true pine (noun)
pine of eastern North America having long needles in bunches of two and reddish bark	a coniferous tree
tall New Zealand timber tree