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Sequoioideae
Sequoioideae (redwoods) is a subfamily in the family Cupressaceae, with three genera. ==Description== The three redwood subfamily genera are ''Sequoia'' and ''Sequoiadendron'' of California and Oregon, USA; and ''Metasequoia'' in China. The redwood species contains the largest and tallest trees in the world. These trees can live thousands of years. This is an endangered subfamily due to habitat losses from fire ecology suppression, logging, and air pollution. Only two of the genera, ''Sequoia'' and ''Sequoiadendron'', are known for massive trees. ''Metasequoia'', with the living species ''Metasequoia glyptostroboides'', are much smaller.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Sequoioideae」の詳細全文を読む
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