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Chinese Opium Poppies

This is a variety of the flower, from the seed heads of which the familiar commercial drug, opium, is extracted. Mr. Burbank has experimented extensively with this as with many other species of poppies, though not, of course, with reference to its opium-producing qualities.

Chinese Opium Poppies

This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 10 Chapter 5