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Helianthella microcephala : ウィキペディア英語版 | Helianthella microcephala
''Helianthella microcephala'', purpledisk helianthella, is a North American plant species in the sunflower family. It grows in the southwestern United States, in the States of Arizona, New Mexico, Colorado, and Utah.〔(Biota of North America Program 2014 county distribution map )〕〔(SEINet, Southwestern Biodiversity, Arizona chapter ) includes photos, description, distribution map〕 ''Helianthella microcephala'' is a herbaceous plant up to tall. Leaves are up to long. The plant usually produces 3-15 yellow flower heads per stem, in a flat-topped array. Each head contains 5-13 yellow ray flowers surrounding numerous dark brown or dark purple (almost black) disc flowers.〔(Flora of North America, ''Helianthella microcephala'' (A. Gray) A. Gray 1883 )〕 ==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 microcephala」の詳細全文を読む
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