Rubus arizonensis, called Arizona dewberry, is an uncommon North American species of flowering plant in the rose family. It is found in northwestern Mexico (Sonora) in the southeastern United States (Arizona, New Mexico, Texas). 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.