Not for use in the perfume industry. Poppy seed pod (5th of 5 images). Close-up of the seed pod of the common poppy, Papaver rhoeas. The pollen-producing anthers hang down from the pod. The smooth seed pod has developed from the flower's carpel after fertilization. P. rhoeas is a medium sized annual plant which grows in arable fields and disturbed ground, and flowers between June and August. See photos B760/357-361 for the sequence of development from flower bud to seed production.