Gladiolus With Increased Size and Compact Growth
Another quality sought by Mr. Burbank in the development of the gladiolus was the habit of compact growth on the stem, so that the flowers should be solidly massed, instead of being scattered along the stem. This specimen shows striking success in this regard, as well as in the increased size and symmetrical form of the flowers themselves.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 9 Chapter 6