cyrilla vs shrub

cyrilla and shrub both are nouns.

Word	Noun	Adjective	Verb	Adverb
cyrilla	Yes	No	No	No
shrub	Yes	No	No	No

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

cyrilla: shrub or small tree of southeastern United States to West Indies and Brazil; grown for the slender racemes of white flowers and orange and crimson foliage
shrub: a low woody perennial plant usually having several major stems

Other hypernyms of cyrilla include bush.

cyrilla (noun)	shrub (noun)
shrub or small tree of southeastern United States to West Indies and Brazil; grown for the slender racemes of white flowers and orange and crimson foliage	a low woody perennial plant usually having several major stems