joint fir vs shrub

joint fir and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
joint fir	Yes	No	No	No
shrub	Yes	No	No	No

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

joint fir: jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of joint fir include bush.

joint fir (noun)	shrub (noun)
jointed and nearly leafless desert shrub having reduced scalelike leaves and reddish fleshy seeds	a low woody perennial plant usually having several major stems