grey-leaf pine vs Pinus torreyana

grey-leaf pine and Pinus torreyana both are nouns.

Word	Noun	Adjective	Verb	Adverb
grey-leaf pine	Yes	No	No	No
Pinus torreyana	Yes	No	No	No

As nouns, grey-leaf pine and Pinus torreyana are synonyms defined as:

grey-leaf pine and Pinus torreyana: medium-sized five-needled pine of southwestern California having long cylindrical cones

Other synonyms of grey-leaf pine include sabine pine, soledad pine, Torrey's pine, Torrey pine.

grey-leaf pine (noun)	Pinus torreyana (noun)
medium-sized five-needled pine of southwestern California having long cylindrical cones	medium-sized five-needled pine of southwestern California having long cylindrical cones