This picture shows some heads of Mr. Burbank's improved artichokes, taken just before the buds were ready to burst. For table use the flowers are never allowed to open, as the bracts would then be practically inedible. But these artichokes in Mr. Burbank's garden are intended for breeding purposes, and they will be allowed to come to maturity, and the best of them used for cross-fertilizing experiments.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 7 Chapter 6