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Helenium flexuosum : ウィキペディア英語版 | Helenium flexuosum
''Helenium flexuosum'' is a North American plant species in the daisy family known by the common name purple sneezeweed.〔 It is widespread across much of eastern and central United States and Canada, from Nova Scotia west to Ontario, Minnesota, and Kansas, south to Florida, Louisiana, and eastern Texas.〔(Biota of North America Program 2014 county distribution map )〕 ''Helenium flexuosum'' is a perennial herb up to 100 cm (40 inches) tall. One plant can produce 80 or more flower heads in a branching array. Each head has up to 700 yellow or purple disc florets, sometimes with no ray florets, sometimes with 8-13 yellow, red, purple, or brown ray florets. The species grows in fields, ditches, and streambanks.〔(Flora of North America, Helenium flexuosum Rafinesque, 1838. Purplehead sneezeweed, hélénie nudiflore )〕 ==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 flexuosum」の詳細全文を読む
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