smoke tree vs shrub

smoke tree and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
smoke tree	Yes	No	No	No
shrub	Yes	No	No	No

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

Other hypernyms of smoke tree include bush.

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

smoke tree: greyish-green shrub of desert regions of southwestern United States and Mexico having sparse foliage and terminal spikes of bluish violet flowers; locally important as source of a light-colored honey of excellent flavor
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of smoke tree include bush.

smoke tree (noun)	shrub (noun)
any of several shrubs or shrubby trees of the genus Cotinus	a low woody perennial plant usually having several major stems
greyish-green shrub of desert regions of southwestern United States and Mexico having sparse foliage and terminal spikes of bluish violet flowers; locally important as source of a light-colored honey of excellent flavor