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The Japanese pear (Pyrus pyrifolia var. culta) belongs to Rosaceae (the Rose family). It is a tall deciduous tree that is a cultivar-group of the ancestor (Pyrus pyrifolia). Pyrus pyrifolia is distributed westward from Chubu district of Honshu to Shikoku, Kyushu in Japan, the southern Korean Peninsula and the reach of Chang Jiang River. The white flowers bloom from April to May. The fruits are false fruits and ripen from July to November. The thalamus is swollen and edible. It is divided into red pear type (Chojuro, Kosui, Hosui, etc.) and green pear type (Twenty Century, Yakumo, etc.).
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