One feature of photography is that you can show things that are not ordinarily seen. This flower is usually in the bright sunlight and is glaringly white, it is hard to make out any detail in it. This particular flower was in the shade of nearby trees with a little spotlight filtering through the leaves onto the flower itself. By underexposing the photograph, we can see detail in the flower that is typically hard to discern.
Photography notes:
The camera was set to underexpose this picture to preserve the highlights. The contrast has been increased and the overall brightness decreased to emphasize the details in the flower that are so bright that they are difficult to see.