Erythroxylon coca vs coca

Erythroxylon coca and coca both are nouns.

Word	Noun	Adjective	Verb	Adverb
Erythroxylon coca	Yes	No	No	No
coca	Yes	No	No	No

As nouns, Erythroxylon coca and coca are synonyms defined as:

Erythroxylon coca and coca: a South American shrub whose leaves are chewed by natives of the Andes; a source of cocaine

Other synonyms of Erythroxylon coca include coca plant.

Erythroxylon coca (noun)	coca (noun)
a South American shrub whose leaves are chewed by natives of the Andes; a source of cocaine	dried leaves of the coca plant (and related plants that also contain cocaine); chewed by Andean people for their stimulating effect
	a South American shrub whose leaves are chewed by natives of the Andes; a source of cocaine