Japanese red pine vs Pinus densiflora

Japanese red pine and Pinus densiflora both are nouns.

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

As nouns, Japanese red pine and Pinus densiflora are synonyms defined as:

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

Other synonyms of Japanese red pine include Japanese table pine.

Japanese red pine (noun)	Pinus densiflora (noun)
pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental	pine native to Japan and Korea having a wide-spreading irregular crown when mature; grown as an ornamental