Rubus occidentalis is a species of Rubus native to eastern North America. Its common nameblack raspberry is shared with other closely related species. Other names occasionally used include bear's eye blackberry, black cap, black cap raspberry,[3][4] and scotch cap.[5]
^Britton, N.L.; Brown, A. 1897. An illustrated flora of the Northern United States, Canada and the British possessions from Newfoundland to the parallel of the Southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Charles Scribner's Sons, New York.