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''Erigeron strigosus'' is a species of flowering plant in the daisy family known by the common name Common eastern fleabane.〔 ''Erigeron strigosus'' is native to eastern and central North America as far west as Manitoba, Idaho and Texas. It has also become naturalized in western North America as well as in Europe and China as a somewhat weedy naturalized species. 〔(Biota of North America Program 2014 state-level distribution map )〕〔(Flora of China, ''Erigeron strigosus'' Muhlenberg ex Willdenow, 1803. 糙伏毛飞蓬 cao fu mao fei peng )〕〔(Tela Botanica, Asteraceae, ''Erigeron strigosus'' Mühl. ex Willd., Vergerette maigre ) in French with French distribution map and other information〕 ''Erigeron strigosus'' is an annual or biennial herb reaching heights of up to 80 centimeters (32 inches). It has hairy, petioled, oval-shaped leaves a few centimeters long mostly on the lower part of the plant. One plant can produce as many as 200 flower heads in a spindly array of branching stems. Each head is less than a centimeter (0.4 inches) wide, containing 50–100 white, pink, or blue ray florets surrounding numerous yellow disc florets.〔(Flora of North America, ''Erigeron strigosus'' Muhlenberg ex Willdenow, 1803. Common eastern fleabane, vergerette rude )〕 ;Varieties〔 *''Erigeron strigosus'' var. ''calcicola'' J. R. Allison - Alabama, Georgia, Tennessee *''Erigeron strigosus'' var. ''dolomiticola'' J. R. Allison - Alabama *''Erigeron strigosus'' var. ''strigosus'' - much of North America; introduced in China *''Erigeron strigosus'' var. ''septentrionalis'' (Fernald & Wiegand) Fernald - much of North America; introduced in Europe ==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「Erigeron strigosus」の詳細全文を読む スポンサード リンク
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