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Tetraneuris verdiensis : ウィキペディア英語版 | Tetraneuris verdiensis
''Tetraneuris verdiensis'' is a rare North American species of plants in the sunflower family. It has been found in only in Yavapai County in Arizona in the southwestern United States.〔(Biota of North America Program 2014 county distribution map )〕 ''Tetraneuris verdiensis'' is a small perennial herb rarely more than tall. It forms a branching underground caudex sometimes producing as many as 15 unbranched, above-ground stems. The plant generally produces one flower head per stem. Each head 20-40 yellow disc flowers but no ray flowers.〔(Flora of North America, ''Tetraneuris verdiensis'' R. A. Denham & B. L. Turner, 1996. )〕〔(Denham, Robert A. & Turner, Billie Lee. 1996. Phytologia 81(1): 5–9 ) includes line drawings on page 7〕 ==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 verdiensis」の詳細全文を読む
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