Pinus torreyana vs true pine

Pinus torreyana and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinus torreyana	Yes	No	No	No
true pine	Yes	No	No	No

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

Pinus torreyana: medium-sized five-needled pine of southwestern California having long cylindrical cones
true pine: a coniferous tree

Other hypernyms of Pinus torreyana include pine, pine tree.

Pinus torreyana (noun)	true pine (noun)
medium-sized five-needled pine of southwestern California having long cylindrical cones	a coniferous tree