An electron microscope image, colorized, shows different structures of pollen grains, including sunflower, morning glory and primrose. Dartmouth Electron Microscope Facility If pollen allergies are ...

Did you know that a single ragweed plant can produce one billion grains of pollen in a season? Or that most pollen that causes allergy problems is so small that it is invisible to the human eye?

This single grain of pollen on the sigma of a morning glory flower is demonstrating the first step in the process of creating a seed. The spikes covering the pollen grain will help it attach to a ...

This is a lonely little pollen grain, sitting on the petal of a thale-cress plant. Although it is solitary now, it was released into the air along with thousands of other pollen grains. This is a ...

Pollen is a fine powder made of pollen grains that fertilize other plants of the same species via the wind. It’s so tiny that most of the time, you can’t see it until the pollen count is high, and it ...

ATLANTA — After a warm, breezy Sunday, the pollen count in Atlanta was measured at 3,028 grains per cubic meter, the highest so far this year. Pine, Oak, Birch, Hackberry, and Sweet Gum were the ...

Pollen recently saw a rise in Stark County, provoking allergy sensitivities amid warm humid temperatures in the region. Grass pollen is categorized as high, at 57 grains per cubic meter of air, ...