Rubus oklahomus is a North American species of flowering plants in the rose family. It has been found in Texas, and Oklahoma) in the south-central United States.Biota of North America Program 2014 county distribution mapBailey, Liberty Hyde. 1932. Gentes Herbarum; Occasional Papers on the Kinds of Plants 2(6): 418

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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