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 brewsteri Cassia brewsteri Cassia brewsteri, commonly known as Brewster’s Cassia, Leichhardt Bean, Cassia pea and Bean Tree is a species of leguminous shrubs or small trees, of the plant family Fabaceae. They grow naturally in Queensland, Australia. They primarily grow in open forest, and occasionally in monsoon forest. "Cassia brewsteri", as with other Cassia, produces pinnate leaves. In the case of "Cassia brewsteri" the leaflets are approximately 5 cm long, bright green, glossy or waxy above and whitish-green below. Flowers are yellow, often with red markings, and produced in racemes. The flowers are followed by round pods, up to 45 cm