Despite the similarity, it is not the common dandelion. The plant is much taller and bears many flowers on long slender branches. The florets are also smaller.
I have a weakness for daisies, but this is not the garden variety daisy. The beauty and cheerfulness of these flowers was only evident in close up. The uneven length of crisp white petals makes them very authentic.
My apologies to allergy sufferers who feel itchy noses after looking at this picture. When I drove past this scene, I knew that I had to take a picture. Car in reverse and parked on roadside. Luckily at 6:45 AM there was no traffic. Best seen in larger format. (iPhone)