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 (genus) to prevent desertification. "Cassia" species are used as food plants by the caterpillars of many lepidopteran taxa. For example, the skipper "Astraptes fulgerator" and the pierids "Catopsilia pomona" and "C. pyranthe" are all seen on "Cassia fistula". The latter utilizes several other cassias, as well. The plant pathogenic viruses cassia yellow blotch bromovirus and cassia yellow spot potyvirus were first described from "Cassia". Because the name "Cassia" is not precise, it is sometimes difficult to know what is meant by references to plants known as "cassias". Cassia gum, for example, is made from "Senna obtusifolia", a species formerly included in