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The Wild cinnamon (Cinnamomum japonicum) belongs to Lauraceae (the Laurel family). It is a tall evergreen tree that is distributed westward from Fukushima prefecture of Honshu to Shikoku, Kyushu and Okinawa in Japan, as well as Taiwan, Jeju-do (southern Korea) and China. This tree grows in mountains and it can reach about 15-20 m in height. The leaves are oblong, leathery, glossy, alternate and have prominent 3 veins. The leaves have freshy fragrance and are used for medicine. Photographs 4th to 6th show the insect galls called "Nickei-hamyaku-ibofushi" made by "Nickei-togari-kijirami" (Trioza vinnamomi). It is called "天竺桂" in Taiwanese Chinese and "天竺桂" (tian zhu gui) in Chinese.
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