Japanese red pine vs true pine

Japanese red pine and true pine both are nouns.

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

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

Japanese red pine: pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental
true pine: a coniferous tree

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

Japanese red pine (noun)	true pine (noun)
pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental	a coniferous tree