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Rubus tygartensis : ウィキペディア英語版 | Rubus tygartensis
''Rubus tygartensis'' is a rare North American species of flowering plants in the rose family. It has been found only in West Virginia in the east-central United States.〔(Biota of North America Program 2014 county distribution map )〕〔 Davis, Hannibal Albert & Davis, Tyreeca Stemple. 1953. Castanea 18(1): 18, 30〕 The genetics of ''Rubus'' is extremely complex, so that it is difficult to decide on which groups should be recognized as species. There are many rare species with limited ranges such as this. Further study is suggested to clarify the taxonomy.〔(Flora of North America, ''Rubus'' Linnaeus, 1754. Bramble )〕 ==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「Rubus tygartensis」の詳細全文を読む
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