While most people are familiar with this kitchen spice, the cinnamon purchased in western supermarkets is actually cassia and not true cinnamon, which is why this species is sometimes called “False Cinnamon”. In fact, some confirmed purists go as far as calling cassia “Bastard Cinnamon.” In contrast, true cinnamon (C. vernum) is native to Sri Lanka and cultivated in China, Vietnam, Brazil, Egypt and India, while the cassia cinnamon available in the U.S. is obtained from Indonesia.