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 javanica Cassia javanica Cassia javanica, also known as Java cassia, pink shower, apple blossom tree and rainbow shower tree (), is a species of tree in the Fabaceae family. Its origin is in Southeast Asia, but it has been extensively grown in tropical areas worldwide as a garden tree owing to its beautiful crimson and pink flower bunches. "C. javanica" is one of Thailand's Nine Auspicious Trees and is said to bring good luck, ensure continued high rank and afford victory. Its flower is the provincial flower of Chainat Province, Thailand. "C. javanica" is a fast growing, deciduous / semi-deciduous tree