Torrey pine vs Torrey's pine

Torrey pine and Torrey's pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Torrey pine	Yes	No	No	No
Torrey's pine	Yes	No	No	No

As nouns, Torrey pine and Torrey's pine are synonyms defined as:

Torrey pine and Torrey's pine: medium-sized five-needled pine of southwestern California having long cylindrical cones

Other synonyms of Torrey pine include grey-leaf pine, Pinus torreyana, sabine pine, soledad pine.

Torrey pine (noun)	Torrey's pine (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