The block is also known by the name of Blackford's Beauty. There is a pattern named (simply) Blackford's Beauty which appears in the book 101 Fabulous Rotary-Cut Quilts by Judy Hopkins and Nancy J. Martin. I find the book to be a very valuable resource.
There is very little difference in the quilt you show and the one in the book, except for the border, and the use of one additional color.