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Erigeron speciosus : ウィキペディア英語版 | Erigeron speciosus
''Erigeron speciosus '' is a widespread North American species of flowering plants in the daisy family known by the common name showy fleabane〔 and aspen fleabane. It has been found in western Canada and the United States, from Alberta and British Columbia south as far as Arizona and New Mexico, with some isolated populations in the State of Baja California in Mexico.〔(Biota of North America Program 2014 county distribution map )〕 ''Erigeron speciosus '' grows on in prairies and in open coniferous forests. It is a perennial herb up to 100 cm (40 inches) tall, producing underground rhizomes and a woody caudex. The inflorescence generally contains 2-20 flower heads per stem. Each head contains 75–150 white, lavender or blue ray florets surrounding many yellow disc florets.〔(Flora of North America, ''Erigeron sparsifolius'' Eastwood, 1896. Bracted Utah fleabane )〕〔(Eastwood, Alice 1896. Proceedings of the California Academy of Sciences, Series 2, 6: 297 )〕 ==References==
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