tar-wood vs New Zealand mountain pine

tar-wood and New Zealand mountain pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
tar-wood	Yes	No	No	No
New Zealand mountain pine	Yes	No	No	No

As nouns, tar-wood and New Zealand mountain pine are synonyms defined as:

Other synonyms of tar-wood include Dacrydium bidwilli, Halocarpus bidwilli, tarwood.

tar-wood (noun)	New Zealand mountain pine (noun)
New Zealand shrub	New Zealand shrub
New Zealand silver pine of conical habit with long slender flexuous branches; adapted to cold wet summers and high altitudes