Pinus resinosa vs pine tree

Pinus resinosa and pine tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinus resinosa	Yes	No	No	No
pine tree	Yes	No	No	No

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

Pinus resinosa: pine of eastern North America having long needles in bunches of two and reddish bark
pine tree: a coniferous tree

Other hypernyms of Pinus resinosa include pine, true pine.

Pinus resinosa (noun)	pine tree (noun)
pine of eastern North America having long needles in bunches of two and reddish bark	a coniferous tree