Close-up ultraviolet profile photo of the centre of a Rudbeckia fulgida var. sullivantii 'Goldsturm' flower. In ultraviolet the pollen grains appear much darker than they are in visible light. The flower petals are much darker towards the centre in ultraviolet. The rest of the florets look pretty similar to how they appear in visible light.
White balance set and dust spots removed in ACR.