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Liatris aestivalis : ウィキペディア英語版 | Liatris aestivalis
''Liatris aestivalis'', also known as the summer gayfeather, is a plant species in the aster family Asteraceae and genus ''Liatris''. It is native to Oklahoma and Texas in the United States, where it is found in habitats that range from limestone outcrops to slopes and bases of slopes with shallow soils. It grows from rounded corms that produce hairless stems 20 to 65 centimeters tall. Plants have dark-purple colored flowers in dense heads that are closely grouped together, forming a cylindrical-shaped spike-like collection surrounding the stems. The basal and cauline leaves have one nerve and are linear to linear-lanceolate in shape. It flowers in July and August, sometimes into September. The seed are produced in cypselae fruits that are 4.5 to 6 millimeters long with feathery bristle-like pappi.〔http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250067091〕 ==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「Liatris aestivalis」の詳細全文を読む
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