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Hymenoxys torreyana : ウィキペディア英語版 | Tetraneuris torreyana
''Tetraneuris torreyana'' is a North American species of plants in the sunflower family. It grows in the western United States, in extreme southern Montana, Arizona, New Mexico, Utah, Colorado, and Wyoming.〔(Biota of North America Program 2014 county distribution map )〕 ''Tetraneuris torreyana'' is a perennial herb up to tall. It forms a branching underground caudex sometimes producing as many as 40 unbranched, above-ground stems. One plant can produce as many as 40 flower heads. Each head has 7–14 yellow ray flowers surrounding 25-150 yellow disc flowers.〔(Flora of North America, ''Tetraneuris torreyana'' (Nuttall) Greene, 1898. )〕 ==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「Tetraneuris torreyana」の詳細全文を読む
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