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Helianthus porteri : ウィキペディア英語版 | Helianthus porteri
''Helianthus porteri'' is a species of sunflower known by the common names Porter's sunflower and Confederate daisy. It is native to the southeastern (Georgia, Alabama, and the Carolinas).〔(Biota of North America Program 2014 county distribution map )〕 ''Helianthus porteri'' grows on granite hillsides. It is an annual herb up to 100 cm (40 inches) tall. One plant usually produces 5 or more flower heads, each containing 7 or 8 yellow ray florets surrounding 30 or more yellow disc florets.〔(Flora of North America, ''Helianthus porteri'' (A. Gray) Pruski, 1998. Confederate daisy )〕〔(Blake, Sydney Fay 1918. Contributions from the Gray Herbarium of Harvard University 54: 114–115 ), as ''Viguiera porteri''〕 ==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「Helianthus porteri」の詳細全文を読む
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