These wildlings have the characteristic potato quality, notwithstanding their peculiarity of form and their uninviting exterior. They are far from being what would be considered, in a comparative sense, a valuable table product, however. It Is interesting to note their resemblance to certain potatoes grown by Mr. Burbank on vines on which tomato tops have been grafted.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 9