brown pine vs conifer

brown pine and conifer both are nouns.

Word	Noun	Adjective	Verb	Adverb
brown pine	Yes	No	No	No
conifer	Yes	No	No	No

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

brown pine: large Australian tree with straight-grained yellow wood that turns brown on exposure
conifer: any gymnospermous tree or shrub bearing cones

Other hypernyms of brown pine include coniferous tree.

brown pine (noun)	conifer (noun)
large Australian tree with straight-grained yellow wood that turns brown on exposure	any gymnospermous tree or shrub bearing cones