A Brazilian Solanum
This distant relative of the sunberry-related also to the the potato and the tomato-has been sent to Mr. Burbank from South America, in the hope that its thorn might be removed. It is now undergoing training in Mr. Burbank's garden at Santa Rosa. Note the web-like effect of the leaves in relation to the main stalk and the smaller stems."
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 6 Chapter 4