Here is a macro shot of a sunflower from the Greenmarket at Union Square. At first I thought the bits of white discoloration at the bottom right of the photo were specks of dust from my camera lens. After reviewing more photos of the sunflower (I took about 6 similar photos), I realized they were actually some sort of dust material (or pollen) trapped by the flower's hairy parts.
I hope your week is as sunny as this sunflower.