Scots pine vs Pinus sylvestris

Scots pine and Pinus sylvestris both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scots pine	Yes	No	No	No
Pinus sylvestris	Yes	No	No	No

As nouns, Scots pine and Pinus sylvestris are synonyms defined as:

Scots pine and Pinus sylvestris: medium large two-needled pine of northern Europe and Asia having flaking red-brown bark

Other synonyms of Scots pine include Scotch fir, Scotch pine.

Scots pine (noun)	Pinus sylvestris (noun)
medium large two-needled pine of northern Europe and Asia having flaking red-brown bark	medium large two-needled pine of northern Europe and Asia having flaking red-brown bark