Scanning electron micrograph of a single poppy seed (Papaver somniferum). The kidney-shaped seeds of the opium poppy are highly nutritious, having a range of culinary uses. The seeds of other poppy species are not consumed, although the plants are still grown for their flowers. Magnification: 80x. Seed is approximately 1.2 mm in length. Supplied by Lauren Holden, courtesy of Wellcome Images.