Pinus densiflora vs pine

Pinus densiflora and pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinus densiflora	Yes	No	No	No
pine	Yes	No	Yes	No

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

Pinus densiflora: pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental
pine: a coniferous tree

Other hypernyms of Pinus densiflora include pine tree, true pine.

Pinus densiflora (noun)	pine (noun)
pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental	a coniferous tree
	straight-grained durable and often resinous white to yellowish timber of any of numerous trees of the genus Pinus

Pinus densiflora (verb)	pine (verb)
	have a desire for something or someone who is not present