Rubus notatus is an uncommon North American species of brambles in the rose family. It grows in northeastern United States from Maine to West Virginia, with reports of isolated populations in Michigan.Biota of North America Program 2014 county distribution mapBailey, Liberty Hyde 1932. Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(3): 152, 154, figure 59
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
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