Zygophyllum fabago vs shrub

Zygophyllum fabago and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Zygophyllum fabago	Yes	No	No	No
shrub	Yes	No	No	No

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

Zygophyllum fabago: perennial shrub of the eastern Mediterranean region and southwestern Asia having flowers whose buds are used as capers
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Zygophyllum fabago include bush.

Zygophyllum fabago (noun)	shrub (noun)
perennial shrub of the eastern Mediterranean region and southwestern Asia having flowers whose buds are used as capers	a low woody perennial plant usually having several major stems