Salsola soda vs shrub

Salsola soda and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Salsola soda	Yes	No	No	No
shrub	Yes	No	No	No

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

Salsola soda: bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Salsola soda include bush.

Salsola soda (noun)	shrub (noun)
bushy plant of Old World salt marshes and sea beaches having prickly leaves; burned to produce a crude soda ash	a low woody perennial plant usually having several major stems