Rubus alaskensis, the Alaska blackberry, is a North American species of flowering plant in the rose family.
The genetics of Rubus is extremely complex, so 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
It is native to Alaska and to western Canada (Yukon, Northwest Territory, British Columbia).Biota of North America Program 2014 state-level distribution mapBailey, Liberty Hyde. 1941. Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(1): 30, figure 8Tropicos, Rubus alaskensis L.H. Bailey
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