Genista raetam vs shrub

Genista raetam and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Genista raetam	Yes	No	No	No
shrub	Yes	No	No	No

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

Genista raetam: desert shrub of Syria and Arabia having small white flowers; constitutes the juniper of the Old Testament; sometimes placed in genus Genista
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Genista raetam include bush.

Genista raetam (noun)	shrub (noun)
desert shrub of Syria and Arabia having small white flowers; constitutes the juniper of the Old Testament; sometimes placed in genus Genista	a low woody perennial plant usually having several major stems