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Hieracium robinsonii : ウィキペディア英語版 | Hieracium robinsonii
''Hieracium robinsonii'', Robinson's hawkweed, is a North American plant species in the dandelion tribe within the sunflower family. It is native to eastern Canada and the northeastern United States (Québec, New Brunswick, Nova Scotia, Maine, and New Hampshire). There are reports of it formerly growing in Newfoundland, but it does not appear to grow there now.〔(Biota of North America Program 2014 county distribution map )〕 ''Hieracium robinsonii'' is an herb up to tall with star-shaped hairs, with leaves both on the stem and in a rosette at the bottom. Leaves are up to long, with no or only a few hairs on the upper surface, more dense hairs on the underside. One stalk can produce 1-10 flower heads in an flat-topped array. Each head has 30-50 yellow ray flowers but no disc flowers.〔(Flora of North America, ''Hieracium robinsonii'' (Zahn) Fernald, 1943. )〕 ==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「Hieracium robinsonii」の詳細全文を読む
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