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 Cassia sieberiana Cassia sieberiana, drumstick tree, is a tree in the Fabaceae family native to Africa. It ranges from 10–20 metres in height and has very bright yellow flowers. It is used for multiple medical purposes in Africa and is found in the secondary jungle of a forest. Individuals of this species are anywhere from 10-20m in height. The bark ranges from a dark grey to black. The lenticels are horizontal and a reddish color. The leaves are arranged in leaflets that contain 7-10 pair of opposite leaves. The upper side of the leaf is moderately shiny while the bottom