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Helianthella uniflora : ウィキペディア英語版 | Helianthella uniflora
''Helianthella uniflora'', oneflower helianthella, is a North American plant species in the sunflower family. It grows in the western United States and western Canada. It has been found from British Columbia south as far as northern Arizona and northern New Mexico.〔(Biota of North America Program 2014 county distribution map )〕〔(SEINet, Southwestern Biodiversity, Arizona chapter ) includes photos, description, distribution map〕 ''Helianthella uniflora'' is a herbaceous plant up to tall. Leaves are up to long, each with 3 prominent veins running the length of the leaf. The plant usually produces only one yellow flower head per stem, though sometimes 2 or 3, the heads not nodding (hanging). Each head contains 11-21 bright yellow ray flowers surrounding numerous yellow disc flowers.〔(Flora of North America, ''Helianthella uniflora'' (Nuttall) Torrey & A. Gray, 1842. )〕 ==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「Helianthella uniflora」の詳細全文を読む
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