Pinus banksiana vs true pine

Pinus banksiana and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinus banksiana	Yes	No	No	No
true pine	Yes	No	No	No

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

Pinus banksiana: slender medium-sized two-needled pine of eastern North America; with yellow-green needles and scaly grey to red-brown fissured bark
true pine: a coniferous tree

Other hypernyms of Pinus banksiana include pine, pine tree.

Pinus banksiana (noun)	true pine (noun)
slender medium-sized two-needled pine of eastern North America; with yellow-green needles and scaly grey to red-brown fissured bark	a coniferous tree