Rubus rosa

 ( Rosa ) 

Rubus rosa, commonly known as rose blackberry, is a North American species of Bramble in Section Alleghenienses of the genus Blackberry, a member of the Rosaceae. It grows in the eastern and central United States (from Maine south to North Carolina and west as far as Minnesota and Nebraska), as well as eastern Canada (Québec). Biota of North America Program 2014 state-level distribution mapBailey, Liberty Hyde 1944. Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(8): 538–546, figures 244–246

• Herbarium specimen at Missouri Botanical Garden, collected in Missouri in 1917