Pinus contorta vs true pine

Pinus contorta and true pine both are nouns.

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

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

Pinus contorta: shrubby two-needled pine of coastal northwestern United States; red to yellow-brown bark fissured into small squares
true pine: a coniferous tree

Other hypernyms of Pinus contorta include pine, pine tree.

Pinus contorta (noun)	true pine (noun)
shrubby two-needled pine of coastal northwestern United States; red to yellow-brown bark fissured into small squares	a coniferous tree