I'm not sure if there is a pattern. I hand drew the tree onto the paper side of Pellon 805 Wonder Under. Then cut the pieces out and ironed them down. I used FMQ to add detail to the leaves and trunk. I like the look of raw edges. You could always just draw the tree on to fabric with a quilting marker, cut and turn applique the pieces down.
The quilt top is from a Super 9 Block pattern. I love this pattern because you start with 3 yards of fabric and end up with 3 quilt tops. Here is the link to that pattern:
http://www.ashevillequiltguild.org/A...or%20Linus.pdf
Let me know if you have any other questions!