jack pine vs true pine

jack pine and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
jack pine	Yes	No	No	No
true pine	Yes	No	No	No

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

jack pine: 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 jack pine include pine, pine tree.

jack pine (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