It looks like a suzani fabric, check etsy.

Google has a fun new search feature that allows you to search using an image.
All you do it put the image url here: http://www.google.com/insidesearch/features/images/searchbyimage.html

When I put in that image I got a match to a blog post here: http://www.remodelaholic.com/2012/01/for-sale-by-owner-shop-linkup-87/

If you look at the bottom of the page in the comments the fabric was from http://www.etsy.com but that is far as I could hunt it down.