Coca tree, Erythroxylum coca (Erythroxylon coca). Chromolithograph after a botanical illustration by Walther Muller from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887.
Coca tree, Erythroxylum coca (Erythroxylon coca). Chromolithograph after a botanical illustration by Walther Muller from Hermann Adolph Koehler's Medicinal Plants, edited by Gustav Pabst, Koehler, Germany, 1887.