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The Korean beech (Fagus multinervis) belongs to Fagaceae (the Beech family). It is a tall deciduous tree that is a species native to Ulleungdo Island in Gyeongsangbuk-do, South Korea, and was discovered in 1912 by Mr. Kinzo Okamoto. It is well adapted to snowy environments, and is found on the slopes of mountains on the island at altitudes of 300 to 900 m. The bark is grayish brown and smooth, and the tree grows to a height of 12 to 18 m. The leaves are irregularly oblong, about 9 cm long and 5 cm wide, with wavy edges. There are 10 to 14 lateral veins on each leaf. From May to June, male flowers bloom in the leaf axils, and female flowers bloom in the leaf axils of new branches, in groups of 2 to 3. The fruit is a nut with hooked projections on the surface, which hang from the end of a long stipe. It is thought to be related to the Japanese beech (Fagus japonica), which is found from Honshu to Shikoku and Kyushu in Japan, and the Chinese beech (Fagus engleri), which is found in China. Fossils have also been discovered in the inland and east coast regions of the Korean Peninsula, and it is thought that it used to grow there too.
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