Cinnamomum cassia elongated leaves that are long and have a decidedly reddish colour when young. Chinese cassia is a close relative to Ceylon cinnamon ("C. verum"), Saigon cinnamon ("C. loureiroi"), also known as "Vietnamese cinnamon", Indonesian cinnamon ("C. burmannii"), also called "korintje", and Malabar cinnamon ("C. citriodorum") from Sri Lanka. In all five species, the dried bark is used as a spice. Chinese cassia's flavour is less delicate than that of Ceylon cinnamon. Its bark is thicker, more difficult to crush, and has a rougher texture than that of Ceylon cinnamon. Most of the spice sold as cinnamon in the United States,
Cassia javanica is used medicinally as a substitute to "Cassia fistula" for treating constipation, colic, chlorosis and urinary disorders. Its leaves are effective against herpes simplex and the bark of "C. javanica" is one of the ingredients in ayurvedic and other traditional medicine antidiabetic formulations. "C. javanica" yields a lightweight to heavy hardwood that is used for general construction, furniture and cabinet making. The bark of "C. javanica" is used for tanning in the leather processing industry. Cassia javanica Cassia javanica, also known as Java cassia, pink shower, apple blossom tree and rainbow shower tree (), is a species of tree in