The wild rose was traditionally an important source of vitamin C in the Shoshoni diet in the form of rose hips. It appears in Shoshoni arts in two different forms: side view and top view. The side view of the rose, shown at left in beadwork by Candy Titus, provides a more concrete image. 

The top view of the rose is more abstract, and is represented by five-fold symmetry, as shown in this decorated bag from the tribal museum: 

It is worth noting that the more abstract, geometric designs are actually older, previous to contact with Europeans. We usually hear how Native American culture was more concrete, and European culture more abstract and mathematical, but in this case the reverse is true.