I think dogwoods have 4 petals....although I could be wrong.
It reminds me strongly of the JEM 5 petal rose cutter. The center is a fondant mold. You can buy those from global sugar art in a set of various sizes.
I also think it might be the 5-petal rose cutter. The flower is then turned over and pressed in the center of each petal w/a ball tool to get that cupped look. I don't think they even softened/thinned the outer edges of each petal. It is then dried in some kind of cup form.
I agree with the others. As far as the middle, you can probably get that look by pressing the fondant onto a metal sieve.