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Fagus grandifolia
''Fagus grandifolia'' (American beech or North American beech) is the species of beech tree native to the eastern United States and Canada. The genus name ''Fagus'' is Latin for "beech", and the species name ''grandifolia'' comes from ''grandis'' "large" and ''folium'' "leaf".
==Distribution and varieties==
The American beech is native to eastern North America, from Nova Scotia west to southern Ontario in southeastern Canada, west to Wisconsin and south to eastern Texas and northern Florida in the United States.
Trees in the southern half of the range are sometimes distinguished as a variety, ''F. grandifolia'' var. ''caroliniana'', but this is not considered distinct in the Flora of North America. The Mexican beech (''Fagus mexicana''), native to the mountains of central Mexico, is closely related, and is sometimes treated as a subspecies of American beech, but more often as a distinct species. The only ''Fagus'' species found in the Western Hemisphere (assuming ''F. mexicana'' is treated as a subspecies), ''F. grandifolia'' is believed to have spanned the width of the North American continent all the way to the Pacific coast before the last ice age.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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