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 crossbill Red Squirrels as their beak is adapted for a specific type of pine cone. This has led to a coevolutionary arms race with the lodgepole pine, which explains why they are confined in such a small area. Other Red Crossbill call types, typically call type 2 & 5, are also found in these areas, but seldomly breed here due to being poorly adapted to the pine cone structure. Due to their restricted range and habitat, there is a cause for concern for this species survival. The Cassia crossbill ("Loxia sinesciuris") was first described in 2009 as the South Hills crossbill,