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Helenium drummondii : ウィキペディア英語版 | Helenium drummondii
''Helenium drummondii'' is a North American perennial plant in the Sunflower Family, commonly known as Fringed sneezeweed.〔 It is native to the south- central United States, in eastern Texas, Arkansas, and Louisiana.〔(Biota of North America Program 2014 county distribution map )〕 ''Helenium drummondii'' is an perennial herb up to 60 cm (2 feet) tall. Leaves are long, thin, and grass-like. One plant can usually produce only 1-3 flower heads. The head is spherical or hemispherical, with sometimes as many as 1000 yellow disc florets, plus 13-30 yellow ray florets. The species grows in bogs, swamps, and other wet places.〔(Flora of North America, Helenium drummondii H. Rock, 1957. Fringed sneezeweed )〕 ==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「Helenium drummondii」の詳細全文を読む
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