The pollen starting to appear on these looks like little yellow flowers.
Echinacea (also known as Rudbeckia) is a composite flower.
At first glance, a composite flower like the daisy looks simple, with petals forming rays around a colorful disk. Upon closer inspection, however, these flowers aren’t simple at all. The flower is actually made up of many flowers–inflorescences–masquerading as a single flower. Each “petal” is a flower, as is each bump on the disk.GardenGuides.com
I gave these a painterly, textured look using Topaz Studio 2.