Rubus vermontanus

Rubus vermontanus is a rare North American species of flowering plants in the rose family. It is found in eastern and central Canada (Québec, Ontario, Newfoundland, and all 3 Maritime Provinces) and the northeastern and north-central United States (Minnesota, Wisconsin, Michigan, Pennsylvania, New York, and all 6 New England States).
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.