Pollen grain, common morning glory (Ipomoea purpurea)

Scanning electron micrograph (SEM) of a single common morning glory (Ipomoea purpurea) pollen grain, still sitting on the anther. Plants in the genus Ipomoea are annual climbers with heart shaped leaves and trumpet-like flowers. A traditional Chinese medicine with some varieties having hallucinogenic properties similar to LSD. Magnification 600x.