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Euthamia graminifolia
''Euthamia graminifolia'' (grass-leaved goldenrod or flat-top goldentop) is a North American species of plants in the daisy family.
It is native to much of Canada (from Newfoundland to British Columbia), and the northern and eastern United States (primarily the Northeast, the Great Lakes region, and the Ohio Valley, with additional populations in the Southeast, the Great Plains, and a few scattered locations in the Pacific Northwest).〔〔(Biota of North America Program, 2014 county distribution map )〕
There are also introduced populations in Europe and Asia.〔(Altervista Flora Italiana, Verga d'oro con foglie da gramigna, ''Euthamia graminifolia'' (L.) Nutt. )〕
==Description==
''Euthamia graminifolia'' is a herbaceous plant on thin, branching stems. Leaves are alternate, simple, long and narrow much like grass leaves (hence the name of the species). One plant can produce many small, yellow flower heads flat-topped arrays sometimes as much as 30 cm (1 foot) across. Each head has 7-35 ray florets surrounding 3-13 disc florets. The species is very common in fallow fields, waste places, fencerows, and vacant lots in many places.〔
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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