Erythroxylon is a genus of flowering plants in the family Erythroxylaceae, commonly known as coca. The plants are known for their alkaloids, which have stimulant properties and are used medicinally. Some common synonyms for the word erythroxylon include coca plant, coca bush, and erythroxylum. Other less common synonyms for the plant include the lady coca plant, Bolivian coca plant, and the Peruvian coca plant. In some regions, coca is also referred to as the mate de coca plant. Regardless of the synonym used, the plant is still an important source of medicinal compounds and continues to be used by indigenous cultures for both spiritual and medicinal purposes.