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Campanula americana
''Campanula americana'', the American bellflower, is a tall bellflower native to eastern North America from the Great Lakes region south to Florida and from the Dakotas east to New York. This native plant is an annual or biennial from 2-6' tall. Its flowers are light blue to violet and are usually arranged in elongated clusters. It is an unusual bellflower in that its flowers are usually flat and not bell-shaped. It has a varying life-history with seeds germinating in the fall producing annual plants and spring-germinating seeds producing biennial plants. It is generally insect-pollinated, and does not usually self-pollinate.
Some authorities, including the USDA Plants database consider the name ''Campanulastrum americanum'' to be the valid and correct name for this species.
== References ==
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「Campanula americana」の詳細全文を読む
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