Create a fractal tree
Context Free, 82 65 57 characters

rule T{9*[y 1]SQUARE[]2*{f 90}T{s.75y 8r 25}}startshape T




See: http://www.contextfreeart.org/gallery/view.php?id=3384

Golf'd further with help from Context Free Art users minimaleye, MtnViewJohn, and kipling.