A Hybrid Sunflower
This is a very interesting and beautiful hybrid produced by Mr. Burbank by crossing the Russian sunflower with the ordinary variety. It will be seen that the specimen has been induced largely to give up the habit of seed-formation, graceful petals or petal-like appendages taking the place of seeds.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 3