Rubus glandicaulis

Rubus glandicaulis is a North American species of flowering plant in the rose family. It is native to eastern and central Canada and the northeastern and north-central United States.
Rubus glandicaulis is an erect shrub with perennial roots and hairy and prickly biennial shoots up to 6 feet tall. Leaves have 3 or 5 leaflets.
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.