Podocarpus nivalis vs shrub

Podocarpus nivalis and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Podocarpus nivalis	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of Podocarpus nivalis; that is, shrub is a word with a broader meaning than Podocarpus nivalis:

Podocarpus nivalis: low wide-spreading coniferous shrub of New Zealand mountains
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Podocarpus nivalis include bush.

Podocarpus nivalis (noun)	shrub (noun)
low wide-spreading coniferous shrub of New Zealand mountains	a low woody perennial plant usually having several major stems