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Rubus noveboracus : ウィキペディア英語版 | Rubus noveboracus
''Rubus noveboracus'' is a uncommon North American species of flowering plant in the rose family. It grows in the northeastern and north-central United States (New York, Pennsylvania) and eastern Canada (Québec).〔(Biota of North America Program 2014 county distribution map )〕〔 Bailey, Liberty Hyde 1947. Gentes Herbarum; Occasional Papers on the Kinds of Plants 7(3): 275, 278, figure 101〕 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 )〕 Some studies have suggested that ''R. noveboracus'' may have originated as a hybrid between ''R. allegheniensis '' and ''R. pensilvanicus. ''〔(Flora of North America, ''Rubus pensilvanicus'' Poiret 1804. Pennsylvania blackberry, ronce de Pennsylvanie )〕 ==References==
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