Pogostemon cablin vs shrub

Pogostemon cablin and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pogostemon cablin	Yes	No	No	No
shrub	Yes	No	No	No

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

Pogostemon cablin: small East Indian shrubby mint; fragrant oil from its leaves is used in perfumes
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of Pogostemon cablin include bush.

Pogostemon cablin (noun)	shrub (noun)
small East Indian shrubby mint; fragrant oil from its leaves is used in perfumes	a low woody perennial plant usually having several major stems