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Erigeron subtrinervis : ウィキペディア英語版 | Erigeron subtrinervis
''Erigeron subtrinervis'', called the Three-Nerved Daisy,〔 the Three-nerve fleabane,〔 or the hairy showy daisy,〔(Lady Bird Johnson Wildflower Center, University of Texas, ''Erigeron subtrinervis'' Rydb. ex Porter & Britton Three-nerve fleabane, Hairy showy daisy )〕 is a North American species of flowering plants in the daisy family. It grows in various mountains of western Canada and the western United States: Rocky Mountains, northern Cascades, Black Hills, etc., from British Columbia and Washington State east to North Dakota and south as far as New Mexico.〔(Biota of North America Program 2014 county distribution map )〕〔(Turner Photographics, Wildflowers of the Pacific Northwest, ''Erigeron subtrinervis'', Three-Nerved Daisy ) photos, description, distribution map for Oregon, Washington, and southern British Columbia〕 ''Erigeron subtrinervis '' grows in openings and along roadsides in aspen groves and conifer forests, as well as on ridges and mountain peaks at high elevations. It is a perennial herb up to 90 cm (3 feet) tall, producing underground rhizomes and a woody caudex. The inflorescence generally contains 1-21 flower heads per stem, in a flat-topped array. Each head contains 100–150 purple or lavender ray florets surrounding many yellow disc florets.〔(Flora of North America, ''Erigeron subtrinervis'' Rydberg ex Porter & Britton, 1894. )〕 ==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 subtrinervis」の詳細全文を読む
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