Looking for more pictures yielded this info "Many quilters will recognize the inspiration for this design as the traditional Dutch Rose block, also called Carpenter's Wheel or Broken Star. Here, the design has been transformed to use simple blocks based on half-square triangles, rather than the usual 45 degree diamonds. A second round of "petals" completes the design, hence its name: Double Dutch Rose. "
http://piecebynumber.com/doubledutchrose.htm