red pine vs pine

red pine and pine both are nouns.

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

As nouns, pine is a hypernym of red pine; that is, 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
pine: a coniferous tree

Other hypernyms of red pine include pine tree, true pine.

red pine (noun)	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	straight-grained durable and often resinous white to yellowish timber of any of numerous trees of the genus Pinus

red pine (verb)	pine (verb)
	have a desire for something or someone who is not present