Scots pine vs true pine

Scots pine and true pine both are nouns.

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

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

Scots pine: medium large two-needled pine of northern Europe and Asia having flaking red-brown bark
true pine: a coniferous tree

Other hypernyms of Scots pine include pine, pine tree.

Scots pine (noun)	true pine (noun)
medium large two-needled pine of northern Europe and Asia having flaking red-brown bark	a coniferous tree