Cinnamomum cassia component called coumarin, which could damage the liver if consumed in larger amounts, European health agencies have warned against consuming high amounts of cassia. Other bioactive compounds found in the bark, powder and essential oils of "C. cassia" are cinnamaldehyde and styrene. In high doses these substances can also be toxic for humans. Cinnamomum cassia Cinnamomum cassia, called Chinese cassia or Chinese cinnamon, is an evergreen tree originating in southern China, and widely cultivated there and elsewhere in southern and eastern Asia (India, Indonesia, Laos, Malaysia, Taiwan, Thailand, and Vietnam). It is one of several species of "Cinnamomum" used primarily
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