Allergenic pollen, coloured scanning electron micrograph (SEM). Ragweed (Ambrosia psilostachya, yellow), sagebrush (Artemisia tridentata, light brown)

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Allergenic pollen, coloured scanning electron micrograph (SEM). Ragweed (Ambrosia psilostachya, yellow), sagebrush (Artemisia tridentata, light brown), timothy (Phleum pratense, light green), scotch broom (Cytisus scoparius, purple), alder (Alnus glutinosa, dark green) and poplar (Populus sp. orange). Magnification: x200 when shortest axis printed at 25 millimetres.

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Size: 3335px × 2620px
Photo credit: © DENNIS KUNKEL MICROSCOPY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 96888c, alder, allergen, allergenic, alnus, ambrosia, artemisia, broom, colored, coloured, cytisus, electron, false-colored, false-coloured, glutinosa, micrograph, phleum, plant, plants, pollen, populus, pratense, psilostachya, ragweed, sagebrush, scanning, scoparius, scotch, sem, timothy, tridentata