Coloured scanning electron micrograph of a single pollen grain from Timothy grass, Phleum pratense. This specimen is seen here in a dessicated form. I

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Coloured scanning electron micrograph of a single pollen grain from Timothy grass, Phleum pratense. This specimen is seen here in a dessicated form. It would appear spherical if seen in situ on the plant's anther. The wind- borne pollen of the Timothy grass is known to cause hay fever. Magnification: x800 at 6x6cm size.

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Size: 3627px × 5079px
Photo credit: © DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: allergy, botany, fever, grass, hay, hayfever, nature, phleum, plant, plants, pollen, pratense, reproduction, reproductive, sem, timothy