Well, my mistake then, thanks for clarifying.
However, the article wrote "coca" as "coca" and that's how I reprinted it here. No modifications. I've never read "coca" as being spelled "cocoa," and I believe "cocoa" is among the substances refined, then, from the beans of the "coca" plant.
(A.) co - ca n.
(1.) Any of certain Andian evergreen shrubs or small trees of the genus Erythroxylum, especially E.coca, whose leaves contain cocaine and other alkaloids. (2.) The dried leaves of such a plant, chewed by people of the Andes for a stimulating effect and also used for extraction of cocaine and other alkaloids. [Spanish from Quechua kuka.]
(B.) co - coa n.
(1.) a. A powder made from cacao seeds, after they have been fermented, roasted, shelled, ground and freed of most their fat. b. A beverage made by mixing this powder with sugar, hot water or milk. (2.) Color. A moderate brown to reddish brown. [Alteration (influenced by coco, coconut palm; see COCONUT) of CACAO.
(C.) Co - co n.
A river rising in northern Nicaragua and flowing about 483 km (300 mi) Northeast along the Nicaragua-Honduras border to the Caribbean Sea.
(D.) choc - o - late n.
(1.) Fermented, roasted, shelled and ground cacao seeds, often combined with a flavoring or a sweetener or flavoring agent. (2.) A beverage made by mixing water or milk with chocolate. (3.) A small, chocolate-covered candy with a hard or soft center. (4.) Color A grayish to deep reddish brown to deep grayish brown. ... [Spanish, from Nahuatl xocolatl : xococ bitter + atl water
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Therefore, the plant origins are DIFFERENT, as to from what "cocoa" is made (chocolate, the cocoa seeds) and from what "cocaine" is manufactured (coca, an evergreen plant, which cocoa is not). Not the same plant origin, although similarly spelled.
I'm sure this English-language confusion about the manufacture of COCAINE sure helps the "poor" coca farmers such as Evo Morales. Most of North America and probably Europe gets to think they're making sweet chocolate while they're actually making the evil cocaine.
In my estimation, Evo Morales (and Hugo Chavez, while I'm on this issue) lend a whole 'nother terrible dimension to the definition of "peasant:" act poor and continue to deal the drugs.
No they are two separate plants. The cocoa plant gives chocolate, the coca plant contains cocaine. Despite their names being similar, the plants are not related species.