The best I have been able to find out by searching online, this pattern is a variation of an amish dahlia. I was curious of the name of the pattern as well. I didn't sew the blocks myself. They were found in a box after my sister's mother-in-law passed away and I was asked to finish the quilt for the family. When I saw they were hand quilted (as I am new at quilting) I had to do what I could to preserve the blocks.
This link looks similar, but the circle is smaller than the squares I have.
Good Luck!