"High Head" Chestnut
This tree, like the one shown in the preceding picture, is six years old. Like the other, it is a complex hybrid, but it has been allowed to take on an upright growth, similar to that of the common American chestnut. The complex chestnut hybrids show the widest range of variation as to form and size and manner of growth.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 11 Chapter 4