Seven Headed Wheat
Sometimes wheat shows a tendency to develop several heads on a single main stalk. At one time, Mr. Burbank thought of developing cereals of this type, improving the stalk to make it able to bear the increased weight, in the hope of thus increasing the yield. But he has decided that on the whole it is better to increase the quality of the individual head rather than to increase the number of heads.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 2