Cornus amomum vs silky dogwood

Cornus amomum and silky dogwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cornus amomum	Yes	No	No	No
silky dogwood	Yes	No	No	No

As nouns, Cornus amomum and silky dogwood are synonyms defined as:

Cornus amomum and silky dogwood: shrub of eastern North America having purplish stems and blue fruit

Other synonyms of Cornus amomum include silky cornel.

Cornus amomum (noun)	silky dogwood (noun)
shrub of eastern North America having purplish stems and blue fruit	shrub of eastern North America closely resembling silky cornel
	shrub of eastern North America having purplish stems and blue fruit