cornelian cherry vs dogwood

cornelian cherry and dogwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
cornelian cherry	Yes	No	No	No
dogwood	Yes	No	No	No

As nouns, dogwood is a hypernym of cornelian cherry; that is, dogwood is a word with a broader meaning than cornelian cherry:

cornelian cherry: deciduous European shrub or small tree having bright red fruit
dogwood: a tree of shrub of the genus Cornus often having showy bracts resembling flowers

Other hypernyms of cornelian cherry include cornel, dogwood tree.

cornelian cherry (noun)	dogwood (noun)
deciduous European shrub or small tree having bright red fruit	a tree of shrub of the genus Cornus often having showy bracts resembling flowers
	hard tough wood of any dogwood of the genus Cornus; resembles boxwood