Allergic pollen from Goldenrod flower

Allergic pollen from Goldenrod flower

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Caption: Goldenrod pollen. Coloured scanning electron micrograph (SEM) of pollen grains from the Canada goldenrod plant, Solidago canadensis. Spiked pollen grains are seen coloured yellow. These microspores are produced by the anthers of the flowers. Solidago canadensis has yellow daisy- like flowers, which produce large quantities of pollen from July to September. The pollen grains are dispersed by the wind, or insects, and play a major role in allergic hayfever and some cases of asthma. The Canada goldenrod plant originates from North America, but is naturalised in parts of Europe. Magnification: x1,500 at 5x7cm size.

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Keywords: allergic reaction causes, allergy, asthma, botany, cause, cause of, coloured sem, goldenrod, hay fever, hayfever, nature, plant, plants, pollen, reproduction, reproductive, solidago, solidago canadensis, type

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