Cinnamomum cassia United Kingdom, and India is Chinese cinnamon. "Indonesian cinnamon" ("C. burmannii") is sold in much smaller amounts. Chinese cassia is produced in both China and Vietnam. Until the 1960s, Vietnam was the world's most important producer of Saigon cinnamon, which has a higher oil content , and consequently has a stronger flavor. Because of the disruption caused by the Vietnam War, however, production of Indonesian cassia in the highlands of the Indonesia island of Sumatra was increased to meet demand. Indonesian cassia has the lowest oil content of the three types of cassia, so commands the lowest price. Chinese cassia
Cassia sieberiana plants, they usually never grow alone. In Nigeria the sweet extract of the stems is used for food. Chew sticks can also be made from the root-wood part of the plant. "Cassia sieberiana" is used to make tools, pestles, mortars, and also used for construction because it is a very hard wood that is resistant to termites. In addition, it is also an ornamental tree because of its brightly colored flowers. Some cultures also incorporate the plant in their religion and for superstitious and magical purposes. Parts of the plant have also been used traditionally as teeth cleaning twigs. Cassia