Pollen from Ragweed flower

Pollen from Ragweed flower

B786/0483 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 28.9MB

Downloadable file size: 2.2MB

Price image Pricing

Please login to use the price calculator


Credit: E. GUEHO/SCIENCE PHOTO LIBRARY

Caption: Ragweed pollen grains. Coloured Scanning Electron Micrograph (SEM) of pollen grains from a ragweed (Ambrosia artemisiifolia). Pollen grain size, shape and surface texture differs from one plant species to another. The outer wall (exine) of these grains is highly sculpted and may assist in wind, water or insect dispersal. Such pollen sculpting variation between species is used by botanists to recognise plant species. Pollen grains contain the plant's male gametes which fertilise the female egg or ovule, with subsequent formation of plant seeds. Pollen also causes allergies and hay fever. Magnification: x1040 at 6x6cm size.

Release details: Model release not required. Property release not required.

Keywords: ambrosia artemisiifolia, botany, cause, grain, hay fever, hayfever, nature, of pollen, plant, plants, polle, pollen, pollen grains, pollinosis, ragweed, reproduction, reproductive, sem

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.