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Bidens aristosa : ウィキペディア英語版 | Bidens aristosa
''Bidens aristosa'' is a North American species of plants in the sunflower family. Common names include bearded beggarticks, long-bracted beggarticks, tickseed beggarticks, swamp marigold, western tickseed and Yankee lice. It is native to eastern and central United States and south-central Canada, from Maine south to Florida and west as far as Ontario, Texas, and Nebraska.〔(''Bidens aristosa''. ) Flora of North America.〕〔(Biota of North America Program 2014 county distribution map )〕 ''Bidens aristosa'' is an annual herb occasionally reaching 150 cm (5 feet) in height. It has numerous yellow flower heads with both ray florets and disc florets. Fruits are dry achenes bearing barbs that get caught in fur or clothing, thus aiding in the plant's dispersal.〔 ==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「Bidens aristosa」の詳細全文を読む
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