West Indian snowberry vs shrub

West Indian snowberry and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
West Indian snowberry	Yes	No	No	No
shrub	Yes	No	No	No

As nouns, shrub is a hypernym of West Indian snowberry; that is, shrub is a word with a broader meaning than West Indian snowberry:

West Indian snowberry: evergreen climbing shrub of southern Florida and West Indies grown for its racemes of fragrant white to creamy flowers followed by globose white succulent berries
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of West Indian snowberry include bush.

West Indian snowberry (noun)	shrub (noun)
evergreen climbing shrub of southern Florida and West Indies grown for its racemes of fragrant white to creamy flowers followed by globose white succulent berries	a low woody perennial plant usually having several major stems