Helianthus annuus
Instead of the bracts that enclose the flower bud, folding back to allow the petals to develop, the purple/green bracts proliferate and become the main feature.
This sunflower is recommended for cutting only, if left in the field small petals (which were hidden under the calyx (and large seed heads develop, completely altering the look of the flower (as intended in the image.)
Chemically Treated
Use the seeds the professionals use