Pinus monticola vs silver pine

Pinus monticola and silver pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinus monticola	Yes	No	No	No
silver pine	Yes	No	No	No

As nouns, Pinus monticola and silver pine are synonyms defined as:

Pinus monticola and silver pine: tall pine of western North America with stout blue-green needles; bark is grey-brown with rectangular plates when mature

Other synonyms of Pinus monticola include mountain pine, western white pine.

Pinus monticola (noun)	silver pine (noun)
tall pine of western North America with stout blue-green needles; bark is grey-brown with rectangular plates when mature	tall pine of western North America with stout blue-green needles; bark is grey-brown with rectangular plates when mature
	timber tree of New Zealand having shiny white wood