March 6, 2010
Pollen on Geranium Stigma
Photograph by Martin Oeggerli
This Month in Photo of the Day: National Geographic Magazine Features
The size of the grains is measured in millionths of a meter, but the romantic journeys of pollen are epic. The dozens of golden grains that have successfully reached a Geranium phaeum flower's stigma must compete to be among the few that achieve fertilization.
See more photographs from the March 2010 feature story "Carnivorous Plants."