larch tree vs conifer

larch tree and conifer both are nouns.

Word	Noun	Adjective	Verb	Adverb
larch tree	Yes	No	No	No
conifer	Yes	No	No	No

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

larch tree: any of numerous conifers of the genus Larix all having deciduous needlelike leaves
conifer: any gymnospermous tree or shrub bearing cones

Other hypernyms of larch tree include coniferous tree.

larch tree (noun)	conifer (noun)
any of numerous conifers of the genus Larix all having deciduous needlelike leaves	any gymnospermous tree or shrub bearing cones