Originally Posted by qbquilts

Not off hand. It's a sawtooth star with a pinwheel in the center instead of a plain square. I've seen it on quilterscache.com before, in just 3 colors (background, then 2 for the pinwheel and star points).

Here's the directions from quilterscache using the 3-colors:
http://quilterscache.com/S/SarahsChoiceBlock.html
You can draft this to any size that makes it easy to do a 16-patch block. (4", 8", 12", 16", etc.)